TPS65094_19 TI1 | Alldatasheet

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Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 TPS65094PMICforIntel™ ApolloLakePlatform

1 Device Overview

1.1 Features

  • Wide VIN range from 5.6 V to 21 V
  • Three variable-output voltage synchronous Step-down controllers With D-CAP2™ Topology – 5 A for BUCK1 (VNN), 7 A for BUCK6 (VDDQ), and 21 A for BUCK2 (VCCGI) using external FETs for typical applications – I2C Dynamic Voltage Scaling (DVS) control (0.5 V to 1.45 V in 10-mV Steps) for BUCK1 and BUCK2 – OTP-Programmable default output voltage for BUCK6 (VDDQ)
  • Three variable-output voltage synchronous Step-down converters with dcs-control topology and I2C DVS capabilities – VIN range from 4.5 V to 5.5 V – 3 A of output current for BUCK3 (VCCRAM) – 2 A of output current for BUCK4 (V1P8A) and BUCK5 (V1P24A) for typical applications
  • Three LDO regulators with adjustable output voltage – LDOA1: I2C-Selectable output voltage from 1.35 V to 3.3 V for up to 200 mA of output current – LDOA2 and LDOA3: I2C-Selectable output voltage from 0.7 V to 1.5 V for up to 600 mA of Output Current
  • VTT LDO for DDR memory termination
  • Three load switches with slew rate control – Up to 400 mA of output current with voltage drop less than 1.5% of nominal input voltage – RDSON < 96 mΩ at input voltage of 1.8 V
  • I2C Interface (device address 0x5E) supports: – Standard mode (100 kHz) – Fast mode (400 kHz) – Fast mode plus (1 MHz)

1.2 Applications

  • 2-, 3-, or 4-Series cell li-ion battery-powered products (NVDC or Non-NVDC)
  • Wall-powered designs, particularly from 12-V supply
  • Tablets, Ultrabook™ , and notebook computers
  • Mobile PCs and mobile internet devices

1.3 Description

The TPS65094 device is a single-chip solution, power-management integrated chip (PMIC) designed specifically for the latest Intel™ processors targeted for tablets, ultrabooks, notebooks, industrial PCs, and Internet-of-Things (IOT) applications using 2S, 3S, or 4S Li-Ion battery packs (NVDC or non-NVDC power architectures), as well as wall-powered applications. The TPS65094 device is used for essential systems with low-voltage rails merged for the smallest footprint and lowest-cost system-power solution. The TPS65094 device provides the complete power solution based on the Intel Reference Designs. Six highly efficient step-down voltage regulators (VRs), a sink or source LDO (VTT), and a load switch are controlled by power-up sequence logic to provide the proper power rails, sequencing, and protection— including DDR3 and DDR4 memory power. The two regulators (BUCK1 and BUCK2) support dynamic voltage scaling (DVS) for maximum efficiency— including support for Connected Standby. The high-frequency VRs use small inductors and capacitors to achieve a small solution size. An I2C interface allows simple control by an embedded controller (EC) or by a system on chip (SoC). The PMIC comes in an 8-mm × 8-mm single-row VQFN package with a thermal pad for good thermal dissipation and ease of board routing.

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Device Overview Copyright © 2015–2019, Texas Instruments Incorporated (1) For all available packages, see the orderable addendum at the end of the data sheet. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS65094 VQFN (64) 8.00 mm × 8.00 mm

INTERRUPT_CNTL Thermal monitoring Thermal shutdown OTP TEST CTRL I2C CTRL SLP_S0B PCH_PWROK RSMRSTB PROCHOT Internal Interrupt Events <PGND_BUCK3> BUCK3 Default: 1.05 V 3 A VREF BUCK1 Default: 1V Typical Application Usage: 0.5 V to 1.45 V (DVS) 5 A VSYS LDOA2 0.7 V to 1.5 V 600 mA Control Inputs SoC VSYS LOAD SWB2 400 mA PMICEN SLP_S3B SLP_S4B LDOLS_EN (a) SWA1_EN (b) THERMTRIPB VSYS LDO5 LDO3P3 V5ANA BUCK5V nPUC BOOT1 DRVH1 SW1 DRVL1 FBVOUT1 PGNDSNS1 ILIM1 BUCK2 Default: 0V Typical Application Usage: 0.5 V to 1.45 V (DVS) 21 A VSYS BOOT2 DRVH2 SW2 DRVL2 FBVOUT2 PGNDSNS2 ILIM2 PVIN3 LX3 FB3 BUCK5V <PGND_BUCK4> BUCK4 Default: 1.8 V 2 A PVIN4 LX4 FB4 <PGND_BUCK5> BUCK5 Default: 1.24 V 2 A PVIN5 LX5 FB5 BUCK5V BUCK6 Default: OTP Dependent 7 A VSYS BOOT6 DRVH6 SW6 DRVL6 FBVOUT6 PGNDSNS6 ILIM6 LDO5V VNN VTT_LDO ½ × VDDQ ILIM set by OTP VDDQ VTT PVINVTT VTT VTTFB DRV5V_1_6 DRV5V_2_A1 LDOA1 1.35 V to 3.3 V

1.8 V(b)

0.7 V to 1.5 V 600 mA SWB2 PVINSWB1_B2 SWB1 SWA1 PVINSWA1 LDOA3 PVINLDOA2_A3 LDOA2 AGND 0.5 V to 3.3 V V1P8U (1) SWA1 VCCGI VCCRAM V1P8A V1P24A FBGND2 VSET EN VSET EN VSET EN VSET EN VSET EN VSET EN VSET EN VSET EN EN EN EN EN EN LDO5V BUCK5V EC 0.5 V to 3.3 V V1P8A GPO Dashed connections optional. Refer to Pin Attributes for connection if unused. SWB1_2 (2) (1) LPDDR3 and LPDDR4 (2) DDR3L (a) LDOA1 1RW³$OZD\\V2Q´ (b) LDOA1 ³$OZD\\V2Q´ Optional(a) Required(b) V1P8A (1) 0.5 V to 3.3 V(2) Copyright © 2016, Texas Instruments Incorporated TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Device OverviewCopyright © 2015–2019, Texas Instruments Incorporated

1.4 Functional Block Diagram

Figure 1-1. PMIC Functional Block Diagram

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Revision History Copyright © 2015–2019, Texas Instruments Incorporated Table of Contents

5.5 Electrical Characteristics: Total Current

5.6 Electrical Characteristics: Reference and Monitoring

5.8 Electrical Characteristics: Synchronous Buck

5.12 Digital Input Signals (LDOLS_EN, SWA1_EN,

THERMTRIPB, PMICEN, SLP_S3B, SLP_S4B,

5.13 Digital Output Signals (IRQB, RSMRSTB,

10.3 Receiving Notification of Documentation Updates .. 84

11 Mechanical, Packaging, and Orderable

2 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (February 2017) to Revision C Page

  • Changed VSYS to PVIN in the efficiency graphs for BUCK3, BUCK4, and BUCK5 in the Typical Characteristics
  • Added to the description of the deassertion condition that causes an emergency shutdown in the Emergency
  • Changed OCP event to power fault event in the OCP bit description in the OFFONSRC Register Field
  • Changed second reference of TPS650940 to TPS650944 for the bit reset values in the LDOA2VID Register

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Revision HistoryCopyright © 2015–2019, Texas Instruments Incorporated Changes from Revision A (June 2016) to Revision B Page

  • Changed the values for LX3, LX4, LX5 from –1 V and 7 V to –2 V and 8 V in the Absolute Maximum Ratings table 11 Changes from September 11, 2015 to June 2, 2016 (from * Revision (September 2015) to A Revision) Page

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Device Options Copyright © 2015–2019, Texas Instruments Incorporated

3 Device Options

3.1 OTP Comparison

Table 3-1 summarizes the differences between the various TPS65094x family OTPs. Table 3-1. Summary of TPS65094x OTP Differences TPS650940 TPS650941 TPS650942 TPS650944 TPS650945 DDR LPDDR4 LPDDR3 DDR3L LPDDR4 LPDDR4 VTT Disabled Yes No No Yes Yes SWB1_2 controlled by SLP_S4B (V1P8U) Yes Yes No Yes Yes SWB1_2 controlled by SLP_S3B No No Yes No No Pin 14 Usage LDOLS_EN LDOLS_EN LDOLS_EN SWA1_EN LDOLS_EN LDOA1 Always On No No No Yes No PMICEN Low Forces Reset Yes Yes Yes No Yes DEVICEID Register 8h 29h 1Ah 0Bh 8h BUCK3-5 Mode Auto Auto Auto Auto Forced PWM

2019 2221 2423 2625 2827 3029 3231 6364 6162 5960 5758 5556 5354 5152 4950 FBVOUT2 DRVH2 SW2 BOOT2 PGNDSNS2 DRVL2 DRV5V_2_A1 LDOA1 LX3 PVIN3 FB3 PMICEN LDOLS_EN or SWA1_EN IRQB RSMRSTB VTTFB VTT PVINVTT ILIM6 FBVOUT6 DRVH6 SW6 BOOT6 PGNDSNS6 DRVL6 DRV5V_1_6 DRVL1 PGNDSNS1 BOOT1 SW1 DRVH1 SWB1 PVINSWB1_B2 SWB2 LX5 PVIN5 FB5 FB4 PVIN4 LX4 FBVOUT1 ILIM1 SWA1 PVINSWA1 ILIM2 SLP_S4B SLP_S3B SLP_S0B DATA CLK V5ANA LDO5P0 VSYS LDO3P3 VREF AGND LDOA2 PVINLDOA2_A3 LDOA3 TOP VIEW PGND/Thermal Pad PROCHOT GPO PCH_PWROK THERMTRIPB TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Pin Configuration and FunctionsCopyright © 2015–2019, Texas Instruments Incorporated

4 Pin Configuration and Functions

64-Pin VQFN With Thermal Pad Top View NOTE: The thermal pad must be connected to the system power ground plane.

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Pin Configuration and Functions Copyright © 2015–2019, Texas Instruments Incorporated Pin Functions PIN I/O SUPPLY, OP VOLTAGE LEVEL

DESCRIPTION

NO. NAME SMPS REGULATORS 1 FBGND2 I Remote negative feedback sense for BUCK2 controller. Connect to VCCGI VSS SENSE sent from the SoC to the PMIC. 2 FBVOUT2 I Remote positive feedback sense for BUCK2 controller. Connect to VCCGI VCC SENSE sent from the SoC to the PMIC.

3 DRVH2 O VSYS + 5 V High-side gate driver output for BUCK2 controller

4 SW2 I Switch node connection for BUCK2 controller

5 BOOT2 I VSYS + 5 V Bootstrap pin for BUCK2 controller. Connect a 100-nF ceramic capacitor between this pin and SW2 pin. 6 PGNDSNS2 I Power GND connection for BUCK2. Connect to ground terminal of external low- side FET.

7 DRVL2 O 5 V Low-side gate driver output for BUCK2 controller

8 DRV5V_2_A1 I 5 V 5-V supply to BUCK2 gate driver and LDOA1. Bypass to ground with a 2.2-µF (typical) ceramic capacitor. Shorted on board to LDO5P0 pin. 10 LX3 O Switch node connection for BUCK3 converter. Connect to a 0.47-µH (typical) inductor with less than 50-mΩ DCR. 11 PVIN3 I 5 V Power input to BUCK3 converter. Bypass to ground with a 10-µF (typical) ceramic capacitor. 12 FB3 I Remote feedback sense for BUCK3 converter. Connect to positive terminal of output capacitor. 20 LX5 O Switch node connection for BUCK5 converter. Connect to a 0.47-µH (typical) inductor with less than 50-mΩ DCR. 21 PVIN5 I 5 V Power input to BUCK5 converter. Bypass to ground with a 10-µF (typical) ceramic capacitor. 22 FB5 I Remote feedback sense for BUCK5 converter. Connect to positive terminal of output capacitor. 23 FB4 I Remote feedback sense for BUCK4 converter. Connect to positive terminal of output capacitor. 24 PVIN4 I 5 V Power input to BUCK4 converter. Bypass to ground with a 10-µF (typical) ceramic capacitor. 25 LX4 O Switch node connection for BUCK4 converter. Connect to a 0.47-µH (typical) inductor with less than 50-mΩ DCR. 29 FBVOUT1 I Remote feedback sense for BUCK1 controller. Connect to VNN VCC SENSE sent from the SoC to the PMIC. 30 ILIM1 I Current limit set pin for BUCK1 controller. Fit a resistor from this pin to ground to set current limit of external low-side FET.

33 DRVH1 O VSYS + 5 V High-side gate driver output for BUCK1 controller

34 SW1 I Switch node connection for BUCK1 controller

35 BOOT1 I VSYS + 5 V Bootstrap pin for BUCK1 controller. Connect a 100-nF ceramic capacitor between this pin and SW1 pin. 36 PGNDSNS1 I Power GND connection for BUCK1. Connect to ground terminal of external low- side FET.

37 DRVL1 O 5 V Low-side gate driver output for BUCK1 controller

38 DRV5V_1_6 I 5 V 5-V supply to BUCK1 and BUCK6 gate drivers. Bypass to ground with a 2.2-µF (typical) ceramic capacitor. Shorted on board to LDO5P0 pin.

39 DRVL6 O 5 V Low-side gate driver output for BUCK6 controller

40 PGNDSNS6 I Power GND connection for BUCK6. Connect to ground terminal of external low- side FET. 41 BOOT6 I VSYS + 5 V Bootstrap pin for BUCK6 controller. Connect a 100-nF ceramic capacitor between this pin and SW6 pin.

42 SW6 I Switch node connection for BUCK6 controller

43 DRVH6 O VSYS + 5 V High-side gate driver output for BUCK6 controller

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Pin Configuration and FunctionsCopyright © 2015–2019, Texas Instruments Incorporated Pin Functions (continued) PIN I/O SUPPLY, OP VOLTAGE LEVEL NO. NAME 44 FBVOUT6 I Remote feedback sense for BUCK6 controller. Connect to positive terminal of output capacitor. 45 ILIM6 I Current limit set pin for BUCK6 controller. Fit a resistor from this pin to ground to set current limit of external low-side FET. 64 ILIM2 I Current limit set pin for BUCK2 controller. Fit a resistor from this pin to ground to set current limit of external low-side FET. LDO and LOAD SWITCHES floating when not in use.

17 SWB1 O

0.5–3.3 V (1.8-V Typical) Output of load switch B1. Bypass to ground with a 0.1-µF (typical) ceramic capacitor. Short with SWB2.

18 PVINSWB1_B2 I

0.5–3.3 V (1.8-V Typical) Power supply to load switch B1 and B2. Bypass to ground with a 1-µF (typical) ceramic capacitor to improve transient performance. Connect to ground when not in use.

19 SWB2 O

0.5–3.3 V (1.8-V Typical) Output of load switch B2. Bypass to ground with a 0.1-µF (typical) ceramic capacitor. Short with SWB1. Leave floating when not in use. 31 SWA1 O 0.5–3.3 V Output of load switch A1. Bypass to ground with a 0.1-µF (typical) ceramic capacitor. Leave floating when not in use. 32 PVINSWA1 I 0.5–3.3 V Power supply to load switch A1. Bypass to ground with a 1-µF (typical) ceramic capacitor to improve transient performance. Connect to ground when not in use. 46 PVINVTT I VDDQ Power supply to VTT LDO. Bypass to ground with a 10-µF (minimum) ceramic capacitor. Connect to ground when not in use. 47 VTT O VDDQ / 2 Output of load VTT LDO. Bypass to ground with 2× 22-µF (minimum) ceramic capacitors. Leave floating when not in use. 48 VTTFB I VDDQ / 2 Remote feedback sense for VTT LDO. Connect to positive terminal of output capacitor. Short to GND when not in use. Leave floating when not in use. 50 PVINLDOA2_A3 I 1.8 V Power supply to LDOA2 and LDOA3. Bypass to ground with a 4.7-µF (typical) ceramic capacitor. Connect to ground when not in use. Leave floating when not in use. 54 LDO3P3 O 3.3 V Output of 3.3-V internal LDO. Bypass to ground with a 4.7-µF (typical) ceramic capacitor. 56 LDO5P0 O 5 V Output of 5-V internal LDO or an internal switch that connects this pin to V5ANA. Bypass to ground with a 4.7-µF (typical) ceramic capacitor.

57 V5ANA I 5 V

External 5-V supply input to internal load switch that connects this pin to LDO5P0 pin. Bypass this pin with an optional ceramic capacitor to improve transient performance.

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Pin Configuration and Functions Copyright © 2015–2019, Texas Instruments Incorporated Pin Functions (continued) PIN I/O SUPPLY, OP VOLTAGE LEVEL NO. NAME INTERFACE 13 PMICEN I PMIC cold-boot pin. At assertion rising edge of the signal of this pin power state transitions from G3 to S4/S5. Driving the pin to L shuts down all VRs.

14 LDOLS_EN or

SWA1_EN I Enable pin for LDOA2, LDOA3, and SWA1 when OTP is configured to LDOLS_EN. Enable pin for just SWA1 when OTP is configured to SWA1_EN. Resources turn on at assertion (H) and turn off at deassertion (L) of the pin. Optionally, when the pin is pulled low, the host can write to enable bits in Reg 0xA0–Reg 0xA1 to control the rails. 15 IRQB O Open-drain output interrupt pin. Refer to Section 6.6.3, IRQ: PMIC Interrupt Register, for definitions. 16 RSMRSTB O Open-drain output Always-ON-rail Power Good. It reflects a valid state whenever VSYS is available.

26 GPO O

Open-drain output controlled by an I2C register bit defined in Section 6.6.26, GPO_CTRL: GPO Control Register, by the user, which then can be used as an enable signal to an external VR. 27 PCH_PWROK O Open-drain output global Power Good. It reflects a valid state whenever VSYS is available.

28 PROCHOT O

Optional open-drain output for indicating PMIC thermal event. Invert before connecting to SoC if used, otherwise leave floating. This pin is triggered when any of the PMIC die temperature sensors detects the THOT temperature.

58 CLK I I2C clock

59 DATA I/O I2C data

60 THERMTRIPB I Thermal shutdown signal from SoC

61 SLP_S0B I Power state pin. PMIC goes into Connected Standby at falling edge and exits from Connected Standby at rising edge. 62 SLP_S3B I Power state pin. PMIC goes into S3 at falling edge and exits from S3, transitions into S0 at rising edge. 63 SLP_S4B I Power state pin. PMIC goes into S4 at falling edge and exits from S4, transitions into S3 at rising edge. REFERENCE 53 VREF O 1.25 V Band-gap reference output. Stabilize it by connecting a 100-nF (typical) ceramic capacitor between this pin and quiet ground. 52 AGND — Analog ground. Do not connect to the thermal pad ground on top layer. Connect to ground of VREF capacitor. 55 VSYS I System voltage detection and input to internal LDOs (3.3 V and 5 V). Bypass to ground with a 1-µF (typical) ceramic capacitor. THERMAL PAD — Thermal pad — Connect to PCB ground plane using multiple vias for good thermal and electrical performance.

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 SpecificationsCopyright © 2015–2019, Texas Instruments Incorporated (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) Transient for less than 5 ns. (3) Transient for less than 20 ns.

5 Specifications

5.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1) MIN MAX UNIT ANALOG VSYS Input voltage from battery –0.3 28 V PVIN3, PVIN4, PVIN5, LDO5P0, DRV5V_1_6, DRV5V_2_A1, DRVL1, DRVL2, DRVL6 –0.3 7 V V5ANA –0.3 6 V PGNDSNS1, PGNDSNS2, PGNDSNS6, AGND, FBGND2 –0.3 0.3 V DRVH1, DRVH2, DRVH6, BOOT1, BOOT2, BOOT6 –0.3 34 V SW1, SW2, SW6 –5(2) 28 V LX3, LX4, LX5 –2(3) 8 V BOOTx to SWx Differential voltage –0.3 5.5 V VREF, LDO3P3, FBVOUT1, FBVOUT2, FBVOUT6, FB3, FB4, FB5, ILIM1, ILIM2, ILIM6, PVINVTT, VTT, VTTFB, PVINSWA1, SWA1, PVINSWB1_B2, SWB1, SWB2, LDOA1 –0.3 3.6 V PVINLDOA2_A3, LDOA2, LDOA3 –0.3 3.3 V DIGITAL IOs DATA, CLK, PCH_PWROK, RSMRSTB, GPO –0.3 3.6 V PMICEN, SLP_S4B, SLP_S3B, SLP_S0B, LDOLS_EN, SWA1_EN, THERMTRIPB, IRQB, PROCHOT –0.3 7 V Storage temperature, Tstg –40 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. (2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

5.2 ESD Ratings

Human Body Model (HBM), per ANSI/ESDA/JEDEC JS001(1) ±1000 V Charged Device Model (CDM), per JESD22-C101(2) ±250

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5.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted) MIN NOM MAX UNIT ANALOG VSYS 5.6 13 21 V VREF –0.3 1.3 V PVIN3, PVIN4, PVIN5, LDO5P0, V5ANA, DRV5V_1_6, DRV5V_2_A1 –0.3 5 5.5 V PGNDSNS1, PGNDSNS2, PGNDSNS6, AGND, FBGND2 –0.3 0.3 V DRVH1, DRVH2, DRVH6, BOOT1, BOOT2, BOOT6 –0.3 26.5 V DRVL1, DRVL2, DRVL6 –0.3 5.5 V SW1, SW2, SW6 –1 21 V LX3, LX4, LX5 –1 5.5 V FBVOUT1, FBVOUT2, FBVOUT6, FB3, FB4, FB5 –0.3 3.6 V LDO3P3, ILIM1, ILIM2, ILIM6, LDOA1 –0.3 3.3 V PVINVTT –0.3 VDDQ V VTT, VTTFB –0.3 VDDQ / 2 V PVINSWA1, SWA1 –0.3 3.3 3.6 V PVINSWB1_B2, PVINLDOA2_A3, SWB1, SWB2 –0.3 1.8 V LDOA2, LDOA3 –0.3 1.5 V DIGITAL IOs DATA, CLK, PMICEN, SLP_S4B, SLP_S3B, LDOLS_EN, SWA1_EN, SLP_S0B, THERMTRIPB, PROCHOT, IRQB, RSMRSTB, PCH_PWROK, GPO –0.3 3.3 V CHIP TA Operating ambient temperature –40 27 85 °C TJ Operating junction temperature –40 27 125 °C (1) For more information about traditional and new thermal metrics, see Semiconductor and IC Package Thermal Metrics.

5.4 Thermal Information

THERMAL METRIC(1) TPS65094x UNITRSK (VQFN)

64 PINS

RθJA Junction-to-ambient thermal resistance 25.8 °C/W RθJC(top) Junction-to-case (top) thermal resistance 11.3 °C/W RθJB Junction-to-board thermal resistance 4.4 °C/W ψJT Junction-to-top characterization parameter 0.2 °C/W ψJB Junction-to-board characterization parameter 4.4 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 0.7 °C/W

5.5 Electrical Characteristics: Total Current Consumption

over recommended free-air temperature range and over recommended input voltage range (typical values are at TA = 25°C) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ISD PMIC shutdown current that includes IQ for references, LDO5, LDO3P3, and digital core VSYS = 13 V, all functional output rails are disabled 65 µA

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5.6 Electrical Characteristics: Reference and Monitoring System

over recommended free-air temperature range and over recommended input voltage range (typical values are at TA = 25°C) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT REFERENCE VREF Band-gap reference voltage 1.25 V Accuracy –0.5% 0.5% CVREF Band-gap output capacitor 0.047 0.1 0.22 µF VSYS_UVLO_5V VSYS UVLO threshold for LDO5 VSYS falling 5.24 5.4 5.56 V VSYS_UVLO_5V_HYS VSYS UVLO threshold hysteresis for LDO5 VSYS rising above VSYS_UVLO_5V 200 mV VSYS_UVLO_3V VSYS UVLO threshold for LDO3P3 VSYS falling 3.45 3.6 3.75 V VSYS_UVLO_3V_HYS VSYS UVLO threshold hysteresis for LDO3P3 VSYS rising above VSYS_UVLO_3V 150 mV TCRIT Critical threshold of die temperature TJ rising 130 145 160 °C TCRIT_HYS Hysteresis of TCRIT TJ falling 10 °C THOT Hot threshold of die temperature TJ rising 110 115 120 °C THOT_HYS Hysteresis of THOT TJ falling 10 °C LDO5 VIN Input voltage at VSYS pin 13 21 V VOUT DC output voltage IOUT = 10 mA 4.9 5 5.1 V IOUT DC output current 100 180 mA IOCP Overcurrent protection Measured with output shorted to ground 200 mA VTH_PG Power Good assertion threshold in percentage of target VOUT VOUT rising 94% VTH_PG_HYS Power Good deassertion hysteresis VOUT rising or falling 4% IQ Quiescent current VIN = 13 V, IOUT = 0 A 20 µA COUT External output capacitance 2.7 4.7 10 µF V5ANA-to-LDO5P0 LOAD SWITCH RDSON On resistance VIN = 5 V, measured from V5ANA pin to LDO5P0 pin at IOUT = 200 mA 1 Ω VTH_PG Power Good threshold for external 5-V supply VV5ANA rising 4.7 V VTH_HYS_PG Power Good threshold hysteresis for external 5-V supply VV5ANA falling 100 mV ILKG Leakage current Switch disabled, VV5ANA = 5 V, VLDO5 = 0 V 10 µA LDO3P3 VIN Input voltage at VSYS pin 13 21 V VOUT DC output voltage IOUT = 10 mA 3.3 V Accuracy VIN = 13 V, IOUT = 10 mA –3% 3% IOUT DC output current 40 mA IOCP Overcurrent protection Measured with output shorted to ground 70 mA VTH_PG Power Good assertion threshold in percentage of target VOUT VOUT rising 92% VTH_PG_HYS Power Good deassertion hysteresis VOUT falling 3% IQ Quiescent current VIN = 13 V, IOUT = 0 A 20 µA COUT External output capacitance 2.2 4.7 10 µF

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Specifications Copyright © 2015–2019, Texas Instruments Incorporated (1) Frequency of transient load current ranges from 0 to 1 MHz with duty cycle of 50%. For cases where duty cycle and frequency are limited by tr and tf, the highest frequency is set by 1 / (tr + tf), where tr is rise time (0% to 100%) and tf is fall time (100% to 0%).

5.7 Electrical Characteristics: Buck Controllers

over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BUCK1 VIN Power input voltage for external HSD FET 5.6 13 21 V VOUT DC output voltage Step size 10 mV BUCK1_VID[6:0] = 0000000 0 V BUCK1_VID[6:0] = 0000001 0.5 BUCK1_VID[6:0] = 0000010 0.51 ⋮ ⋮ BUCK1_VID[6:0] = 0110011 (default) 1.00 ⋮ ⋮ BUCK1_VID[6:0] = 1110101 1.66 BUCK1_VID[6:0] = 1110110–1111111 1.67 DC output voltage accuracy VOUT ≥ 1 V, IOUT = 100 mA to 5 A –2% 2% VOUT = 0.75 V, IOUT = 100 mA to 2.1 A –2.5% 2.5% VOUT ≤ 0.6 V, IOUT = 10 mA –3.5% 3.5% Total output voltage accuracy (DC + ripple) in DCM IOUT = 10 mA, VOUT ≤ 0.785 V, VSYS = 13 V –20 40 mV IOUT = 10 mA, VOUT ≤ 0.785 V, VSYS = 21 V –20 55 SR(VOUT) Output DVS slew rate 2.5 3.125 mV/µs ILIM_LSD Low-side output valley current limit accuracy (programmed by external resistor RLIM) See Section 6.3.3.4, Current Limit, for details. –15% 15% VTH_ZC Low-side current zero crossing detection threshold –11 11 mV ILIMREF Source current out of ILIM1 pin T = 25°C 45 50 55 µA VLIM Voltage at ILIM1 pin VLIM = RLIM × ILIMREF 0.2 2.25 V ΔVOUT/ΔVIN Line regulation VOUT ≥ 1 V, IOUT = 5 A –0.5% 0.5% ΔVOUT/ΔIOUT Load regulation VIN = 13 V, VOUT ≥ 1 V, IOUT = 0 A to 5 A, referenced to VOUT at IOUT = 5 A 0% 1% ΔVOUT_TR (1) Load transient regulation DC + AC at sense point, VIN = 13 V, VOUT = 1.00 V, IOUT = 1.5 A to 5 A and 5 A to 1.5 A with 1 µs of tr and tf –50 50 mV DC + AC at sense point, VIN = 13 V, VOUT = 0.75 V, IOUT = 0.3 A to 1.5 A and 1.5 A to 0.3 A with 1 µs of tr and tf VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 3% COUT External output capacitance Recommended amount to meet transient specification 180 220 µF LSW External output inductance 0.376 0.47 0.564 µH

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 SpecificationsCopyright © 2015–2019, Texas Instruments Incorporated Electrical Characteristics: Buck Controllers (continued) over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT (2) Additional overshoot of up to 100 mV is allowed as long as it lasts less than 50 µs. RDSON_DRVH Driver DRVH resistance Source, IDRVH = –50 mA 3 Ω Sink, IDRVH = 50 mA 2 RDSON_DRVL Driver DRVL resistance Source, IDRVL = –50 mA 3 Ω Sink, IDRVL = 50 mA 0.4 RDIS Output auto-discharge resistance BUCK1_DIS[1:0] = 01 100 ΩBUCK1_DIS[1:0] = 10 200 BUCK1_DIS[1:0] = 11 500 CBOOT Bootstrap capacitance 100 nF RON_BOOT Bootstrap switch ON resistance 20 Ω BUCK2 VIN Power input voltage for external HSD FET 5.6 13 21 V VOUT DC output voltage Step size 10 mV BUCK2_VID[6:0] = 0000000 (default) 0 V BUCK2_VID[6:0] = 0000001 0.5 BUCK2_VID[6:0] = 0000010 0.51 ⋮ ⋮ BUCK2_VID[6:0] = 1110101 1.66 BUCK2_VID[6:0] = 1110110–1111111 1.67 DC output voltage accuracy VOUT ≥ 1 V, IOUT = 100 mA to 21 A –2% 2% VOUT = 0.75 V, IOUT = 100 mA to 6.3 A –2.5% 2.5% VOUT ≤ 0.6 V, IOUT = 10 mA –3.5% 3.5% Total output voltage accuracy (DC + ripple) in DCM IOUT = 10 mA, VOUT ≤ 0.765 V –20 40 mV SR(VOUT) Output DVS slew rate 2.5 3.125 mV/µs ILIM_LSD Low-side output valley current limit accuracy (programmed by external resistor RLIM) See Section 6.3.3.4, Current Limit, for details. –15% 15% VTH_ZC Low-side current zero crossing detection threshold –11 11 mV ILIMREF Source current out of ILIM2 pin T = 25°C 45 50 55 µA VLIM Voltage at ILIM2 pin VLIM = RLIM × ILIMREF 0.2 2.25 V ΔVOUT/ΔVIN Line regulation VOUT ≥ 1 V, IOUT = 21 A –0.5% 0.5% ΔVOUT/ΔIOUT Load regulation VIN = 13 V, 1 V ≤ VOUT ≤ 1.3 V, IOUT = 0 A to 21 A, referenced to VOUT at IOUT = 21 A 0% 1% ΔVOUT_TR (1) Load transient regulation DC + AC at sense point, VIN = 13 V, VOUT = 1 V, IOUT = 1 A to 21 A and 21 A to 1 A with 1 µs of tr and tf –160 30(2) mV DC + AC at sense point, VIN = 13 V, VOUT = 0.75 V, IOUT = 1 A to 3.3 A and 3.3 A to

1 A with 1 µs of tr and tf

–50 50(2) VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92%

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Specifications Copyright © 2015–2019, Texas Instruments Incorporated Electrical Characteristics: Buck Controllers (continued) over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 3% LSW External output inductance 0.176 0.22 0.264 µH COUT External output capacitance Recommended amount to meet transient specification 440 550 µF RDSON_DRVH Driver DRVH resistance Source, IDRVH = –50 mA 3 Ω Sink, IDRVH = 50 mA 2 RDSON_DRVL Driver DRVL resistance Source, IDRVL = –50 mA 3 Ω Sink, IDRVL = 50 mA 0.4 RDIS Output auto-discharge resistance BUCK2_DIS[1:0] = 01 100 ΩBUCK2_DIS[1:0] = 10 200 BUCK2_DIS[1:0] = 11 500 CBOOT Bootstrap capacitance 100 nF RON_BOOT Bootstrap switch ON resistance 20 Ω BUCK6 VIN Power input voltage for external HSD FET 5.6 13 21 V VOUT DC output voltage Step size 10 mV BUCK6_VID[6:0] = 0000000 0 V BUCK6_VID[6:0] = 0000001 0.5 BUCK6_VID[6:0] = 0000010 0.51 ⋮ ⋮ BUCK6_VID[6:0] = 0111101 (TPS650940 and TPS650944 default) 1.1 ⋮ ⋮ BUCK6_VID[6:0] = 1000111 (TPS650941 default) 1.2 ⋮ ⋮ BUCK6_VID[6:0] = 1010110 (TPS650942 default) 1.35 ⋮ ⋮ BUCK6_VID[6:0] = 1110101 1.66 BUCK6_VID[6:0] = 1110110–1111111 1.67 DC output voltage accuracy VOUT ≥ 1 V, IOUT = 100 mA to 7 A –2% 2% ILIM_LSD Low-side output valley current limit accuracy (programmed by external resistor RLIM) See Section 6.3.3.4, Current Limit, for details. –15% 15% VTH_ZC Low-side current zero crossing detection threshold –11 11 mV ILIMREF Source current out of ILIM6 pin T = 25°C 45 50 55 µA VLIM Voltage at ILIM6 pin VLIM = RLIM × ILIMREF 0.2 2.25 V ΔVOUT/ΔVIN Line regulation VOUT ≥ 1 V, IOUT = 7 A –0.5% 0.5% ΔVOUT/ΔIOUT Load regulation VIN = 13 V, VOUT ≥ 1 V, IOUT = 0 A to 7 A, referenced to VOUT at IOUT = 7 A 0% 1% ΔVOUT_TR Load transient regulation DC + AC at sense point, VIN = 13 V, VOUT = 1.35 V, IOUT = 2.1 A to 7 A and 7 A to 2.1 A with 1.96 µs of tr and tf (2.5 A/µs) –5% 5%

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 SpecificationsCopyright © 2015–2019, Texas Instruments Incorporated Electrical Characteristics: Buck Controllers (continued) over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 3% LSW External output inductance 0.376 0.47 0.564 µH COUT External output capacitance Recommended amount to meet transient specification 150 220 µF RDSON_DRVH Driver DRVH resistance Source, IDRVH = –50 mA 3 Ω Sink, IDRVH = 50 mA 2 RDSON_DRVL Driver DRVL resistance Source, IDRVL = –50 mA 3 Ω Sink, IDRVL = 50 mA 0.4 RDIS Output auto-discharge resistance BUCK6_DIS[1:0] = 01 100 ΩBUCK6_DIS[1:0] = 10 200 BUCK6_DIS[1:0] = 11 500 CBOOT Bootstrap capacitance 100 nF RON_BOOT Bootstrap switch ON resistance 20 Ω

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Specifications Copyright © 2015–2019, Texas Instruments Incorporated (1) Frequency of transient load current ranges from 0 to 1 MHz with duty cycle of 50%. For cases where duty cycle and frequency are limited by tr and tf, the highest frequency is set by 1 / (tr + tf), where tr is rise time (0% to 100%) and tf is fall time (100% to 0%).

5.8 Electrical Characteristics: Synchronous Buck Converters

over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BUCK3 VIN Power input voltage 4.5 5 5.5 V VOUT DC output voltage Step size 25 mV BUCK3_VID[6:0] = 0000000 0 V BUCK3_VID[6:0] = 0000001 0.65 BUCK3_VID[6:0] = 0000010 0.675 ⋮ ⋮ BUCK3_VID[6:0] = 0010001 (default) 1.05 ⋮ ⋮ BUCK3_VID[6:0] = 1110101 3.55 BUCK3_VID[6:0] = 1110110–1111111 3.575 DC output voltage accuracy VOUT = 1.05 V, IOUT = 1.5 A –2% 2% VOUT = 1.05 V, IOUT = 100 mA –2.5% 2.5% SR(VOUT) Output DVS slew rate 2.5 3.125 mV/µs IOUT Continuous DC output current 3 A IIND_LIM HSD FET current limit 4.3 7 A IQ Quiescent current VIN = 5 V, VOUT = 1 V 35 µA ΔVOUT/ΔVIN Line regulation VOUT = 1.05 V, IOUT = 1.5 A –0.5% 0.5% ΔVOUT/ΔIOUT Load regulation VIN = 5 V, VOUT = 1.05 V, IOUT = 0 A to 3 A, referenced to VOUT at IOUT = 1.5 A –0.2% 2% ΔVOUT_TR (1) Load transient regulation DC + AC at sense point, VIN = 5 V, VOUT = 1.05 V, IOUT = 0.9 A to 3 A and 3 A to 0.9 A with slew rate of 2.5 A/µs –5% 7% VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 3% LSW Output inductance 0.376 0.47 0.564 µH CIN Input bypass capacitance 2.5 10 12 µF COUT Output filtering capacitance 61.6 88 110 µF RDIS Output auto-discharge resistance BUCK3_DIS[1:0] = 01 100 ΩBUCK3_DIS[1:0] = 10 200 BUCK3_DIS[1:0] = 11 500

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 SpecificationsCopyright © 2015–2019, Texas Instruments Incorporated Electrical Characteristics: Synchronous Buck Converters (continued) over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BUCK4 VIN Power input voltage 4.5 5 5.5 V VOUT DC output voltage Step size 25 mV BUCK4_VID[6:0] = 0000000 0 V BUCK4_VID[6:0] = 0000001 0.65 BUCK4_VID[6:0] = 0000010 0.675 ⋮ ⋮ BUCK4_VID[6:0] = 0101111 (default) 1.8 ⋮ ⋮ BUCK4_VID[6:0] = 1110101 3.55 BUCK4_VID[6:0] = 1110110–1111111 3.575 DC output voltage accuracy VOUT = 1.8 V, IOUT = 1.5 A –2% 2% VOUT = 1.8 V, IOUT = 100 mA –2.5% 2.5% IOUT Continuous DC output current 3 A IIND_LIM HSD FET current limit 4.3 7 A IQ Quiescent current VIN = 5 V, VOUT = 1.8 V 35 µA ΔVOUT/ΔVIN Line regulation VOUT = 1.8 V, IOUT = 1.5 A –0.5% 0.5% ΔVOUT/ΔIOUT Load regulation VIN = 5 V, VOUT = 1.8 V, IOUT = 0 A to 1.5 A, referenced to VOUT at IOUT = 0.75 A –0.2% 0.65% ΔVOUT_TR (1) Load transient regulation DC + AC at sense point, VIN = 5 V, VOUT = 1.8 V, IOUT = 0.45 A to 1.5 A and 1.5 A to 0.45 A with slew rate of 2.5 A/µs –5% 5% VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 3% LSW Output inductance 0.376 0.47 0.564 µH CIN Input bypass capacitance 2.5 10 12 µF COUT Output filtering capacitance 46 66 110 µF RDIS Output auto-discharge resistance BUCK4_DIS[1:0] = 01 100 ΩBUCK4_DIS[1:0] = 10 200 BUCK4_DIS[1:0] = 11 500

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Specifications Copyright © 2015–2019, Texas Instruments Incorporated Electrical Characteristics: Synchronous Buck Converters (continued) over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BUCK5 VIN Power input voltage 4.5 5 5.5 V VOUT DC output voltage Step size 10 mV BUCK5_VID[6:0] = 0000000 0 V BUCK5_VID[6:0] = 0000001 0.5 BUCK5_VID[6:0] = 0000010 0.51 ⋮ ⋮ BUCK5_VID[6:0] = 1001011 (default) 1.24 ⋮ ⋮ BUCK5_VID[6:0] = 1110101 1.66 BUCK4_VID[6:0] = 1110110–1111111 1.67 DC output voltage accuracy VOUT = 1.24 V, IOUT = 1.5 A –2% 2% VOUT = 1.24 V, IOUT = 100 mA –2.5% 2.5% IOUT Continuous DC output current 3.2 A IIND_LIM HSD FET current limit 4.3 7 A IQ Quiescent current VIN = 5 V, VOUT = 1.24 V 35 µA ΔVOUT/ΔVIN Line regulation VOUT = 1.24 V, IOUT = 1.5 A –0.5% 0.5% ΔVOUT/ΔIOUT Load regulation VIN = 5 V, VOUT = 1.24 V, IOUT = 0 A to 1.5 A, referenced to VOUT at IOUT = 0.75 A –0.2% 1% ΔVOUT_TR (1) Load transient regulation DC + AC at sense point, VIN = 5 V, VOUT = 1.24 V, IOUT = 0.45 A to 1.5 A and 1.5 A to 0.45 A with slew rate of 2.5 A/µs –5% 5% VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 3 LSW Output inductance 0.376 0.47 0.564 µH CIN Input bypass capacitance 2.5 10 12 µF COUT Output filtering capacitance 31 44 110 µF RDIS Output auto-discharge resistance BUCK5_DIS[1:0] = 01 100 ΩBUCK5_DIS[1:0] = 10 200 BUCK5_DIS[1:0] = 11 500

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5.9 Electrical Characteristics: LDOs

over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LDOA1 VIN Input voltage 4.5 5 5.5 V VOUT DC output voltage IOUT = 10 mA, LDOA1_SEL[3:0] = 0000 1.35 V LDOA1_SEL[3:0] = 0001 1.5 LDOA1_SEL[3:0] = 0010 1.6 LDOA1_SEL[3:0] = 0011 1.7 LDOA1_SEL[3:0] = 0100 (TPS650944 default) 1.8 LDOA1_SEL[3:0] = 0101 1.9 LDOA1_SEL[3:0] = 0110 2 LDOA1_SEL[3:0] = 0111 2.1 LDOA1_SEL[3:0] = 1000 2.3 LDOA1_SEL[3:0] = 1001 2.4 LDOA1_SEL[3:0] = 1010 2.5 LDOA1_SEL[3:0] = 1011 2.7 LDOA1_SEL[3:0] = 1100 2.85 LDOA1_SEL[3:0] = 1101 3 LDOA1_SEL[3:0] = 1110 (TPS650940, TPS650941, and TPS650942 default) 3.3 VOUT Accuracy IOUT = 0 to 200 mA –2% 2% IOUT DC output current 200 mA ΔVOUT/ΔVIN Line regulation IOUT = 40 mA –0.5% 0.5% ΔVOUT/ΔIOUT Load regulation IOUT = 10 mA to 200 mA –2% 2% IOCP Overcurrent protection VIN = 5 V, Measured with output shorted to ground 500 mA VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 3% IQ Quiescent current IOUT = 0 A 23 µA COUT External output capacitance 2.7 4.7 10 µF ESR 100 mΩ RDIS Output auto-discharge resistance LDOA1_DIS[1:0] = 01 100 ΩLDOA1_DIS[1:0] = 10 190 LDOA1_DIS[1:0] = 11 450

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Specifications Copyright © 2015–2019, Texas Instruments Incorporated Electrical Characteristics: LDOs (continued) over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT (1) The minimum value must be equal to or greater than 1.62 V. LDOA2 VIN Power input voltage VOUT + VDROP(1) 1.8 1.98 V VOUT DC output voltage in normal operating mode LDOA2_VID[3:0] = 0000 (TPS650944 default) 0.7 V LDOA2_VID[3:0] = 0001 0.75 LDOA2_VID[3:0] = 0010 0.8 LDOA2_VID[3:0] = 0011 0.85 LDOA2_VID[3:0] = 0100 0.9 LDOA2_VID[3:0] = 0101 0.95 LDOA2_VID[3:0] = 0110 1 LDOA2_VID[3:0] = 0111 1.05 LDOA2_VID[3:0] = 1000 1.1 LDOA2_VID[3:0] = 1001 1.15 LDOA2_VID[3:0] = 1010 (TPS650940, TPS650941, and TPS650942 default) 1.2 LDOA2_VID[3:0] = 1011 1.25 LDOA2_VID[3:0] = 1100 1.3 LDOA2_VID[3:0] = 1101 1.35 LDOA2_VID[3:0] = 1110 1.4 LDOA2_VID[3:0] = 1111 1.5 VOUT DC output voltage accuracy IOUT = 0 to 600 mA –2% 3% IOUT DC output current 600 mA VDROP Dropout voltage VOUT = 0.99 × VOUT_NOM, IOUT = 600 mA 350 mV ΔVOUT/ΔVIN Line regulation IOUT = 300 mA –0.5% 0.5% ΔVOUT/ΔIOUT Load regulation IOUT = 10 mA to 600 mA –2% 2% IOCP Overcurrent protection Measured with output shorted to ground 0.65 1.25 A VTH_PG Power Good assertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good deassertion hysteresis VOUT falling 3% IQ Quiescent current IOUT = 0 A 20 µA PSRR Power supply rejection ratio f = 1 kHz, VIN = 1.8 V, VOUT = 1.2 V, IOUT = 300 mA, COUT = 2.2 µF to 4.7 µF 48 dB f = 10 kHz, VIN = 1.8 V, VOUT = 1.2 V, IOUT = 300 mA, COUT = 2.2 µF to 4.7 µF 30 dB COUT External output capacitance 2.2 4.7 10 µF ESR 100 mΩ RDIS Output auto-discharge resistance LDOA2_DIS[1:0] = 01 80 ΩLDOA2_DIS[1:0] = 10 180 LDOA2_DIS[1:0] = 11 475

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 SpecificationsCopyright © 2015–2019, Texas Instruments Incorporated Electrical Characteristics: LDOs (continued) over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LDOA3 VIN Power input voltage VOUT + VDROP(1) 1.8 1.98 V VOUT DC output voltage in normal operating mode LDOA3_VID[3:0] = 0000 (TPS650944 default) 0.7 V LDOA3_VID[3:0] = 0001 0.75 LDOA3_VID[3:0] = 0010 0.8 LDOA3_VID[3:0] = 0011 0.85 LDOA3_VID[3:0] = 0100 0.9 LDOA3_VID[3:0] = 0101 0.95 LDOA3_VID[3:0] = 0110 1 LDOA3_VID[3:0] = 0111 1.05 LDOA3_VID[3:0] = 1000 1.1 LDOA3_VID[3:0] = 1001 1.15 LDOA3_VID[3:0] = 1010 1.2 LDOA3_VID[3:0] = 1011 (TPS650940, TPS650941, and TPS650942 default) 1.25 LDOA3_VID[3:0] = 1100 1.3 LDOA3_VID[3:0] = 1101 1.35 LDOA3_VID[1:0] = 1110 1.4 LDOA3_VID[1:0] = 1111 1.5 VOUT DC output voltage accuracy IOUT = 0 to 600 mA –2% 3% IOUT DC output current 600 mA IOCP Overcurrent protection Measured with output shorted to ground 0.65 1.25 A VDROP Dropout voltage VOUT = 0.99 × VOUT_NOM, IOUT = 600 mA 350 mV ΔVOUT/ΔVIN Line regulation IOUT = 300 mA –0.5% 0.5% ΔVOUT/ΔIOUT Load regulation IOUT = 10 mA to 600 mA –2% 2% VTH_PG Power Good assertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good deassertion hysteresis VOUT falling 3% IQ Quiescent current IOUT = 0 A 20 µA PSRR Power supply rejection ratio f = 1 kHz, VIN = 1.8 V, VOUT = 1.2 V, IOUT = 300 mA, COUT = 2.2 µF to 4.7 µF dB f = 10 kHz, VIN = 1.8 V, VOUT = 1.2 V, IOUT = 300 mA, COUT = 2.2 µF to 4.7 µF COUT External output capacitance 2.2 4.7 10 µF ESR 100 mΩ RDIS Output auto-discharge resistance LDOA3_DIS[1:0] = 01 80 ΩLDOA3_DIS[1:0] = 10 180 LDOA3_DIS[1:0] = 11 475

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Specifications Copyright © 2015–2019, Texas Instruments Incorporated Electrical Characteristics: LDOs (continued) over recommended input voltage range, TA = –40°C to +85°C and TA = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VTT LDO VIN Power input voltage VDDQ 3.3 V VOUT DC output voltage Measured at VTTFB pin VIN / 2 V DC output voltage accuracy Relative to VIN / 2, IOUT = 100 mA, 1.1 V ≤ VIN ≤ 1.5 V –10 10 mV IOUT DC Output Current (RMS Value Over Operation) 1.1 V ≤ VIN ≤ 1.5 V –500 0 500 mA Pulsed Current (Duty Cycle Limited to Remain Below DC RMS Specification) source(+) and sink(–): LPDDR3 and LPDDR4 OTPs, 1.1 V ≤ VIN ≤ 1.5 V –500 500 mA source(+) and sink(–): DDR3L OTPs, 1.1 V ≤ VIN ≤ 1.5 V –1800 1800 ΔVOUT/ΔIOUT Load regulation Relative to VIN / 2, IOUT ≤ 10 mA, 1.1 V ≤ VIN ≤ 1.5 V –10 10 mV Relative to VIN / 2, IOUT ≤ 500 mA, 1.1 V ≤ VIN ≤ 1.5 V –20 20 Relative to VIN / 2, IOUT ≤ 1200 mA, 1.1 V ≤ VIN ≤ 1.5 V –30 30 Relative to VIN / 2, IOUT ≤ 1800 mA, 1.1 V ≤ VIN ≤ 1.5 V –40 40 ΔVOUT_TR Load transient regulation DC + AC at sense point, 1.1 V ≤ VIN ≤ 1.5 V, (IOUT = 0 to 350 mA and 350 mA to 0) AND (0 to –350 mA and –350 mA to 0) with 1 µs of rise and fall time COUT = 40 µF –5% 5% IOCP Overcurrent protection Measured with output shorted to ground: OTPs with VTT ILIM = 0.95 A 0.95 A Measured with output shorted to ground: OTPs with VTT ILIM = 1.8 A 1.8 VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 110% VOUT falling 95% VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 5% IQ Total ground current VIN = 1.2 V, IOUT = 0 A 240 µA ILKG OFF leakage current VIN = 1.2 V, disabled 1 µA CIN External input capacitance 10 µF COUT External output capacitance 35 µF

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5.10 Electrical Characteristics: Load Switches

over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SWA1 VIN Input voltage range 0.5 1.8 3.3 V IOUT DC output current 300 mA RDSON ON resistance VIN = 1.8 V, measured from PVINSWA1 pin to SWA1 pin at IOUT = IOUT(MAX) 60 93 mΩ VIN = 3.3 V, measured from PVINSWA1 pin to SWA1 pin at IOUT = IOUT(MAX) 100 165 VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 2% IINRUSH Inrush current upon turnon VIN = 3.3 V, COUT = 0.1 µF 10 mA IQ Quiescent current VIN = 3.3 V, IOUT = 0 A 10.5 µA VIN = 1.8 V, IOUT = 0 A 9 ILKG Leakage current Switch disabled, VIN = 1.8 V 7 370 nA Switch disabled, VIN = 3.3 V 10 900 COUT External output capacitance 0.1 µF RDIS Output auto-discharge resistance SWA1_DIS[1:0] = 01 100 ΩSWA1_DIS[1:0] = 10 200 SWA1_DIS[1:0] = 11 500 SWB1_2 VIN Input voltage range 0.5 1.8 3.3 V IOUT DC current per output 400 mA RDSON ON resistance per output VIN = 1.8 V, measured from PVINSWB1_B2 pin to SWB1 or SWB2 pin at IOUT = IOUT(MAX) 68 92 mΩ VIN = 3.3 V, measured from PVINSWB1_B2 pin to SWB1 or SWB2 pin at IOUT = IOUT(MAX) 75 125 VTH_PG Power Good deassertion threshold in percentage of target VOUT VOUT rising 108% VOUT falling 92% VTH_HYS_PG Power Good reassertion hysteresis entering back into VTH_PG VOUT rising or falling 2% IINRUSH Inrush current upon turning on VIN = 3.3 V, COUT = 0.1 µF 10 mA IQ Quiescent current VIN = 3.3 V, IOUT = 0 A 10.5 µA VIN = 1.8 V, IOUT = 0 A 9 ILKG Leakage current Switch disabled, VIN = 1.8 V 7 460 nA Switch disabled, VIN = 3.3 V 10 1150 COUT External output capacitance 0.1 µF RDIS Output auto-discharge resistance SWBx_DIS[1:0] = 01 100 ΩSWBx_DIS[1:0] = 10 200 SWBx_DIS[1:0] = 11 500

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5.11 Digital Signals: I2C Interface

over recommended free-air temperature range and over recommended input voltage range (typical values are at TA = 25°C) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOL Low-level output voltage VPULL_UP = 1.8 V 0.4 V VIH High-level input voltage 1.2 V VIL Low-level input voltage 0.4 V ILKG Leakage current VPULL_UP = 1.8 V 0.01 0.3 µA RPULL-UP Pullup resistance Standard mode 8.5 kΩFast mode 2.5 Fast mode plus 1 COUT Total load capacitance per pin 50 pF

5.12 Digital Input Signals (LDOLS_EN, SWA1_EN, THERMTRIPB, PMICEN, SLP_S3B,

SLP_S4B, SLP_S0B) over recommended free-air temperature range and over recommended input voltage range (typical values are at TA = 25°C) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIH High-level input voltage 0.85 V VIL Low-level input voltage 0.4 V

5.13 Digital Output Signals (IRQB, RSMRSTB, PCH_PWROK, PROCHOT)

Over recommended free-air temperature range and over recommended input voltage range (typical values are at TA = 25°C) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOL Low-level output voltage IOL < 2 mA 0.4 V ILKG Leakage current VPULL_UP = 1.8 V 0.35 µA

5.14 Timing Requirements

over recommended free-air temperature range and over recommended input voltage range (typical values are at TA = 25°C) (unless otherwise noted) MIN NOM MAX UNIT I2C INTERFACE fCLK Clock frequency (standard mode) 100 kHzClock frequency (fast mode) 400 Clock frequency (fast mode plus) 1000 tr Rise time (standard mode) 1000 nsRise time (fast mode) 300 Rise time (fast mode plus) 120 tf Rise time (standard mode) 300 nsRise time (fast mode) 300 Rise time (fast mode plus) 120

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5.15 Switching Characteristics

over operating free-air temperature range and over recommended input voltage range (typical values are at TA = 25°C) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BUCK CONTROLLERS tPG Total turnon time Measured from enable going high to when output reaches 90% of target value. 550 850 µs TON,MIN Minimum ON time of DRVH 50 ns TDEAD Driver dead-time DRVH off to DRVL on 15 ns DRVL off to DRVH on 30 fSW Switching frequency Continuous-conduction mode, VIN = 13 V, VOUT ≥ 1 V 1000 kHz BUCK CONVERTERS tPG Total turnon time Measured from enable going high to when output reaches 90% of target value. VOUT = 1 V, COUT = 88 µF 250 1000 µs fSW Switching frequency Continuous-conduction mode, BUCK3 VOUT = 1 V, IOUT = 1 A 1.6 MHz Continuous-conduction mode, BUCK3 VOUT = 1.05 V, IOUT = 1 A 1.7 Continuous-conduction mode, BUCK4 VOUT = 1.8 V, IOUT = 1 A 2.5 Continuous-conduction mode, BUCK5 VOUT = 1.24 V, IOUT = 1 A 2.4 Continuous-conduction mode, BUCK5 VOUT = 1.35 V, IOUT = 1 A 2.5 LDOAx tSTARTUP Start-up time Measured from enable going high to when output reaches 95% of final value, VOUT = 1.2 V, COUT = 4.7 µF 180 µs VTT LDO tSTARTUP Start-up time Measured from enable going high to PG assertion, VOUT = 0.675 V, COUT = 40 µF 22 µs SWA1 tTURN-ON Turnon time Measured from enable going high to reach 95% of final value, VIN = 3.3 V, COUT = 0.1 µF 0.85 ms Measured from enable going high to reach 95% of final value, VIN = 1.8 V, COUT = 0.1 µF 0.63 SWB1_2 tTURN-ON Turnon time Measured from enable going high to reach 95% of final value, VIN = 3.3 V, COUT = 0.1 µF 1.1 ms Measured from enable going high to reach 95% of final value, VIN = 1.8 V, COUT = 0.1 µF 0.82

Output Load (A) Efficiency 83% 84% 85% 86% 87% 88% 89% 90% 91% 92% D004 PVIN = 4.5 V PVIN = 5 V PVIN = 5.5 V Output Load (A) Efficiency 80% 81% 82% 83% 84% 85% 86% 87% 88% 89% 90% D005 PVIN = 4.5 V PVIN = 5 V PVIN = 5.5 V Output Load (A) Efficiency 0 1 2 3 4 5 6 7 76% 78% 80% 82% 84% 86% 88% 90% 92% D011 VSYS = 5.4 V VSYS = 13 V VSYS = 18 V Output Load (A) Efficiency 0 0.5 1 1.5 2 2.5 3 69% 71% 73% 75% 77% 79% 81% 83% 85% 87% 89% 91% D003 PVIN = 4.5 V PVIN = 5 V PVIN = 5.5 V Output Load (A) Efficiency 68% 70% 72% 74% 76% 78% 80% 82% 84% 86% 88% D001 VSYS = 5.4 V VSYS = 13 V VSYS = 18 V Output Load (A) Efficiency 0 3 6 9 12 15 18 21 70% 72% 74% 76% 78% 80% 82% 84% 86% 88% D002 VSYS = 5.4 V VSYS = 13 V VSYS = 18 V TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Specifications Copyright © 2015–2019, Texas Instruments Incorporated

5.16 Typical Characteristics

Figure 5-1. BUCK1 (VNN) Efficiency at VOUT = 1 V Figure 5-2. BUCK2 (VCCGI) Efficiency at VOUT = 1 V Figure 5-3. BUCK6 (VDDQ) Efficiency at VOUT = 1.2 V Figure 5-4. BUCK3 (VCCRAM) Efficiency at VOUT = 1.05 V Figure 5-5. BUCK4 (V1P8A) Efficiency at VOUT = 1.8 V Figure 5-6. BUCK5 (V1P24A) Efficiency at VOUT = 1.24 V

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated (1) When powered from a 5-V supply through the DRV5V_2_A1 pin. Otherwise, maximum current is limited by maximum IOUT of LDO5. (2) For LPDDR3 and LPDDR4 memory, SWB1_2 is configured to V1P8U and controlled by SLP_S4B. For DDR3L memory, SWB1_2 is configured to either V3P3S or V1P8S and controlled by SLP_S3B.

6 Detailed Description

6.1 Overview

The TPS65094x device provides all the necessary power supplies for the Intel Reference Designs. For an overview of the different OTP configurations, consult Table 3-1. The following VRs are integrated: three step-down controllers (BUCK1, BUCK2, and BUCK6), three step-down converters (BUCK3, BUCK4, and BUCK5), a sink and source LDO (VTT LDO), three low-voltage VIN LDOs (LDOA1–LDOA3), and three load switches that are managed by power-up sequence logic to provide the proper power rails, sequencing, and protection. All VRs have a built-in discharge resistor, and the value can be changed by the DISCHCNT1–DISCHCNT3 and LDOA1_CTRL registers. When enabling a VR, the PMIC automatically disconnects the discharge resistor for that rail without any I2C command. Table 6-1 summarizes the key characteristics of the voltage rails. Table 6-1. Summary of Voltage Regulators RAIL TYPE INPUT VOLTAGE (V) OUTPUT VOLTAGE RANGE (V) TYPICAL APPLICATION CURRENT (mA)MIN MAX MIN TYP MAX BUCK1 (VNN) Step-down controller 4.5 21 0.5 1.05 1.67 5000 BUCK2 (VCCGI) Step-down controller 4.5 21 0.5 1 1.67 21000 BUCK3 BUCK6 (VDDQ) Step-down controller 4.5 21 0.5 OTP dependent 1.67 7000 LDOA1 LDO 4.5 5.5 1.35 OTP dependent 3.3 200(1) LDOA2 LDO 1.62 1.98 0.7 OTP dependent 1.5 600 LDOA3 LDO 1.62 1.98 0.7 OTP dependent 1.5 600 SWA1 Load switch 0.5 3.3 300 SWB1_2(2) Load switch 0.5 3.3 800 (combined) VTT Sink and source LDO BUCK6 output VBUCK6 / 2 OTP dependent

INTERRUPT_CNTL Thermal monitoring Thermal shutdown OTP TEST CTRL I2C CTRL SLP_S0B PCH_PWROK RSMRSTB PROCHOT Internal Interrupt Events <PGND_BUCK3> BUCK3 Default: 1.05 V 3 A VREF BUCK1 Default: 1V Typical Application Usage: 0.5 V to 1.45 V (DVS) 5 A VSYS LDOA2 0.7 V to 1.5 V 600 mA Control Inputs SoC VSYS LOAD SWB2 400 mA PMICEN SLP_S3B SLP_S4B LDOLS_EN (a) SWA1_EN (b) THERMTRIPB VSYS LDO5 LDO3P3 V5ANA BUCK5V nPUC BOOT1 DRVH1 SW1 DRVL1 FBVOUT1 PGNDSNS1 ILIM1 BUCK2 Default: 0V Typical Application Usage: 0.5 V to 1.45 V (DVS) 21 A VSYS BOOT2 DRVH2 SW2 DRVL2 FBVOUT2 PGNDSNS2 ILIM2 PVIN3 LX3 FB3 BUCK5V <PGND_BUCK4> BUCK4 Default: 1.8 V 2 A PVIN4 LX4 FB4 <PGND_BUCK5> BUCK5 Default: 1.24 V 2 A PVIN5 LX5 FB5 BUCK5V BUCK6 Default: OTP Dependent 7 A VSYS BOOT6 DRVH6 SW6 DRVL6 FBVOUT6 PGNDSNS6 ILIM6 LDO5V VNN VTT_LDO ½ × VDDQ ILIM set by OTP VDDQ VTT PVINVTT VTT VTTFB DRV5V_1_6 DRV5V_2_A1 LDOA1 1.35 V to 3.3 V 0.7 V to 1.5 V 600 mA SWB2 PVINSWB1_B2 SWB1 SWA1 PVINSWA1 LDOA3 PVINLDOA2_A3 LDOA2 AGND 0.5 V to 3.3 V V1P8U (1) SWA1 VCCGI VCCRAM V1P8A V1P24A FBGND2 VSET EN VSET EN VSET EN VSET EN VSET EN VSET EN VSET EN VSET EN EN EN EN EN EN LDO5V BUCK5V EC 0.5 V to 3.3 V V1P8A GPO Dashed connections optional. Refer to Pin Attributes for connection if unused. SWB1_2 (2) (1) LPDDR3 and LPDDR4 (2) DDR3L (a) LDOA1 1RW³$OZD\\V2Q´ (b) LDOA1 ³$OZD\\V2Q´ Optional(a) Required(b) V1P8A (1) 0.5 V to 3.3 V(2) Copyright © 2016, Texas Instruments Incorporated TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated

6.2 Functional Block Diagram

Figure 6-1 shows a functional block diagram of the PMIC. Figure 6-1. PMIC Functional Block Diagram

VTT LDO 1.5 A LDOA2 0.6 A LDOA3 0.6 A SWA1 0.3 A SWB1 0.4 A SWB2 0.4 A LDOA1 0.2 A LDO5 0.18 A LDO3P3 0.04 A PG_5V PMICEN SLP_S3B IRQB SCLK DATA RSMRSTB PCH_PWROK SLP_S4B SLP_S0B EXT FET EXT FET EXT FET VNN VCCGI VCCRAM V1P8A V1P24A VDDQ VTT 0.7 V to 1.5 V 0.7 V to 1.5 V 0.5 V to 3.3 V V1P8U(1) 0.5 V to 3.3 V(2) PMIC SoC PLATFORM VDDQVSYS VSYS BUCK 5 V VSYS LDO5P0 V1P8A VSYS LDO5P0 BUCK 3.3 V REF THERMTRIPB PROCHOT 800 mA 1.35 V to 3.3 V(a) LDOLS_EN (a) SWA1_EN (b) (a) LDOA1 1RW³$OZD\\V2Q´ (b) LDOA1 ³$OZD\\V2Q´ (1) LPDDR3 and LPDDR4 (2) DDR3L 0.5 V to 3.3 V V1P8A (1) 0.5 V to 3.3 V(2) VSYS Copyright © 2016, Texas Instruments Incorporated TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated Figure 6-2. Apollo Lake Power Map

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated (1) All Power Good signals must immediately deassert at the loss of any of the qualifying signals, or at the occurrence of a fault condition.

6.3 Feature Description

6.3.1 Power Good (PGOOD)

The TPS65094x device provides information on status of VRs through two Power Good signals or pins. Table 6-2 defines which signals are required to assert the PGOOD signals. Table 6-2. Power Good Summary POWER GOOD(1) QUALIFYING SIGNALS (LOGICAL AND) UVLO (VSYS > 5.6 V) PMICEN THERMTRIPB SLP_S4B SLP_S3B BUCK1_PG (VNN) BUCK4_PG (V1P8A) BUCK5_PG (V1P24A) BUCK6_PG (VDDQ) BUCK3_PG (VCCRAM) BUCK2_PG (VCCGI)

6.3.2 Register Reset Conditions

All registers are reset if any of the following conditions are met:

  • VSYS pin voltage drops below 5.4 V
  • Falling edge of PMICEN for OTPs where LDOA1 is not "Always On"
  • Falling edge of THERMTRIPB while RSMRSTB = 1
  • Power fault of any regulator where xx_FLTMSK = 0 (see Section 6.6.27, PWR_FAULT_MASK1 Register, and Section 6.6.28, PWR_FAULT_MASK2 Register)
  • PMIC critical temperature shutdown
  • Software shutdown (writing 1 to the SDWN bit in the FORCESHUTDN register, see Figure 6-35) Additionally, BUCK1 and BUCK2 VID registers are reset on the falling edge of SLP_S0IXB and SLP_S3B.

6.3.3 SMPS Voltage Regulators

The buck controllers integrate gate drivers for external power stages with programmable current limit (set by an external resistor at ILIMx pin), which allows for optimal selection of external passive components based on the desired system load. The buck converters include integrated power stage and require a minimum number of pins for power input, inductor, and output voltage feedback input. Combined with high-frequency switching, all these features allow use of inductors in small form factor, thus reducing the total cost and size of the system. BUCK3–BUCK6 have selectable auto- and forced-PWM mode through the BUCKx_MODE bit in the BUCKxCTRL register. In default auto mode, the VR automatically switches between PWM and PFM depending on the output load to maximize efficiency. The host cannot select Forced PWM mode for other SMPS VRs as they stay in auto mode at all times. See Table 6-3 and Table 6-4 for the full voltage tables for all SMPS regulators.

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated Table 6-3. 10-mV Step-Size VOUT Range (BUCK1, BUCK2, BUCK5, BUCK6) VID Bits VOUT VID Bits VOUT VID Bits VOUT 0000000 0 0101011 0.92 1010110 1.35 0000001 0.50 0101100 0.93 1010111 1.36 0000010 0.51 0101101 0.94 1011000 1.37 0000011 0.52 0101110 0.95 1011001 1.38 0000100 0.53 0101111 0.96 1011010 1.39 0000101 0.54 0110000 0.97 1011011 1.40 0000110 0.55 0110001 0.98 1011100 1.41 0000111 0.56 0110010 0.99 1011101 1.42 0001000 0.57 0110011 1.00 1011110 1.43 0001001 0.58 0110100 1.01 1011111 1.44 0001010 0.59 0110101 1.02 1100000 1.45 0001011 0.60 0110110 1.03 1100001 1.46 0001100 0.61 0110111 1.04 1100010 1.47 0001101 0.62 0111000 1.05 1100011 1.48 0001110 0.63 0111001 1.06 1100100 1.49 0001111 0.64 0111010 1.07 1100101 1.50 0010000 0.65 0111011 1.08 1100110 1.51 0010001 0.66 0111100 1.09 1100111 1.52 0010010 0.67 0111101 1.10 1101000 1.53 0010011 0.68 0111110 1.11 1101001 1.54 0010100 0.69 0111111 1.12 1101010 1.55 0010101 0.70 1000000 1.13 1101011 1.56 0010110 0.71 1000001 1.14 1101100 1.57 0010111 0.72 1000010 1.15 1101101 1.58 0011000 0.73 1000011 1.16 1101110 1.59 0011001 0.74 1000100 1.17 1101111 1.60 0011010 0.75 1000101 1.18 1110000 1.61 0011011 0.76 1000110 1.19 1110001 1.62 0011100 0.77 1000111 1.20 1110010 1.63 0011101 0.78 1001000 1.21 1110011 1.64 0011110 0.79 1001001 1.22 1110100 1.65 0011111 0.80 1001010 1.23 1110101 1.66 0100000 0.81 1001011 1.24 1110110 1.67 0100001 0.82 1001100 1.25 1110111 1.67 0100010 0.83 1001101 1.26 1111000 1.67 0100011 0.84 1001110 1.27 1111001 1.67 0100100 0.85 1001111 1.28 1111010 1.67 0100101 0.86 1010000 1.29 1111011 1.67 0100110 0.87 1010001 1.30 1111100 1.67 0100111 0.88 1010010 1.31 1111101 1.67 0101000 0.89 1010011 1.32 1111110 1.67 0101001 0.90 1010100 1.33 1111111 1.67 0101010 0.91 1010101 1.34

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated Table 6-4. 25-mV Step-Size VOUT Range (BUCK3, BUCK4) VID Bits VOUT VID Bits VOUT VID Bits VOUT 0000000 0 0101011 1.700 1010110 2.775 0000001 0.650 0101100 1.725 1010111 2.800 0000010 0.675 0101101 1.750 1011000 2.825 0000011 0.700 0101110 1.775 1011001 2.850 0000100 0.725 0101111 1.800 1011010 2.875 0000101 0.750 0110000 1.825 1011011 2.900 0000110 0.775 0110001 1.850 1011100 2.925 0000111 0.800 0110010 1.875 1011101 2.950 0001000 0.825 0110011 1.900 1011110 2.975 0001001 0.850 0110100 1.925 1011111 3.000 0001010 0.875 0110101 1.950 1100000 3.025 0001011 0.900 0110110 1.975 1100001 3.050 0001100 0.925 0110111 2.000 1100010 3.075 0001101 0.950 0111000 2.025 1100011 3.100 0001110 0.975 0111001 2.050 1100100 3.125 0001111 1.000 0111010 2.075 1100101 3.150 0010000 1.025 0111011 2.100 1100110 3.175 0010001 1.050 0111100 2.125 1100111 3.200 0010010 1.075 0111101 2.150 1101000 3.225 0010011 1.100 0111110 2.175 1101001 3.250 0010100 1.125 0111111 2.200 1101010 3.275 0010101 1.150 1000000 2.225 1101011 3.300 0010110 1.175 1000001 2.250 1101100 3.325 0010111 1.200 1000010 2.275 1101101 3.350 0011000 1.225 1000011 2.300 1101110 3.375 0011001 1.250 1000100 2.325 1101111 3.400 0011010 1.275 1000101 2.350 1110000 3.425 0011011 1.300 1000110 2.375 1110001 3.450 0011100 1.325 1000111 2.400 1110010 3.475 0011101 1.350 1001000 2.425 1110011 3.500 0011110 1.375 1001001 2.450 1110100 3.525 0011111 1.400 1001010 2.475 1110101 3.550 0100000 1.425 1001011 2.500 1110110 3.575 0100001 1.450 1001100 2.525 1110111 3.575 0100010 1.475 1001101 2.550 1111000 3.575 0100011 1.500 1001110 2.575 1111001 3.575 0100100 1.525 1001111 2.600 1111010 3.575 0100101 1.550 1010000 2.625 1111011 3.575 0100110 1.575 1010001 2.650 1111100 3.575 0100111 1.600 1010010 2.675 1111101 3.575 0101000 1.625 1010011 2.700 1111110 3.575 0101001 1.650 1010100 2.725 1111111 3.575 0101010 1.675 1010101 2.750

50 µA BOOTx DRVHx FAULT PGOOD ILIM VFB OC SS Ramp Comp EN VDD HS LS DRV5V_x_x PGNDSNSx VREF ± VTH_PG Ramp Generator PMIC Internal Signals External Inputs/Outputs VREF + VTH_PG OV Copyright © 2017, Texas Instruments Incorporated TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated

6.3.3.1 Controller Overview

The controllers are fast-reacting, high-frequency, scalable output power controllers capable of driving two external N-MOSFETs. They use a D-CAP2 control scheme that optimizes transient responses at high load currents for such applications as CORE and DDR supplies. The output voltage is compared with internal reference voltage after divider resistors. The PWM comparator determines the timing to turn on the high- side MOSFET. The PWM comparator response maintains a very small PWM output ripple voltage. Because the device does not have a dedicated oscillator for control loop on board, switching cycle is controlled by the adaptive ON time circuit. The ON time is controlled to meet the target switching frequency by feed-forwarding the input and output voltage into the ON time one-shot timer. The D-CAP2 control scheme has an injected ripple from the SW node that is added to the reference voltage to simulate output ripple, which eliminates the need for ESR-induced output ripple from D-CAP™ mode control. Thus, low-ESR output capacitors (such as low-cost ceramic MLCC capacitors) can be used with the controllers. Figure 6-3. Controller Block Diagram

Min. ON Time Min. OFF Time Gate Driver Anti Shoot-Through Current Limit Comparator LXx Limit High Side Limit Low Side FBx EN MODE PVINx PGND/Thermal Pad VIN Integrated Feed Back Network VREF FB Error Comparator Zero/Negative Current Limit Comparator Control Logic NMOS NMOS MODE / EN VREF 0.40 V Softstart PMIC Internal Signals External Inputs/Outputs Copyright © 2016, Texas Instruments Incorporated TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated

6.3.3.2 Converter Overview

The PMIC synchronous step-down DC-DC converters include a unique hysteretic PWM control scheme which enables a high switching frequency converter, excellent transient and AC load regulation, as well as operation with cost-competitive external components. The controller topology supports forced PWM mode as well as power-save mode operation. Power-save mode operation, or PFM mode, reduces the quiescent current consumption and ensures high conversion efficiency at light loads by skipping switch pulses. In forced PWM mode, the device operates on a quasi-fixed frequency, avoids pulse skipping, and allows filtering of the switch noise by external filter components. The PMIC device offers fixed output voltage options featuring smallest solution size by using only three external components per converter. A significant advantage of PMIC compared to other hysteretic PWM controller topologies is the excellent capability of the AC load transient regulation. When the output voltage falls below the threshold of the error comparator, a switch pulse is initiated, and the high-side switch is turned on. The high-side switch remains turned on until a minimum ON-time of tONmin expires and the output voltage trips the threshold of the error comparator or the inductor current reaches the high-side switch current limit. When the high-side switch turns off, the low-side switch rectifier is turned on and the inductor current ramps down until the high-side switch turns on again or the inductor current reaches zero. In forced PWM mode operation, negative inductor current is allowed to enable continuous conduction mode even at no load condition. Figure 6-4. Converter Block Diagram

Steps × 3 µsVOUT 200 µsLoad and Time Dependent VID Number of Steps × 3 µs VOUT TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated

6.3.3.3 DVS

BUCK1–BUCK6 and LDOA1–3 support dynamic voltage scaling (DVS) for maximum system efficiency. The VR outputs can slew up and down in either 10-mV or 25-mV steps using the 7-bit voltage ID (VID) defined in Section 5.7, Electrical Characteristics: Buck Controllers, and Section 5.8, Electrical Characteristics: Synchronous Buck Converters. DVS slew rate is minimum 2.5 mV/µs. To meet the minimum slew rate, VID progresses to the next code at 3-µs (nom) interval per 10-mV step. When DVS is active, the VR is forced into PWM mode to ensure the output keeps track of VID code with minimal delay. Additionally, PGOOD is masked when DVS is in progress. Figure 6-5 shows an example of slew down and up from one VID to another. Figure 6-5. DVS Timing Diagram I As shown in Figure 6-6, if a BUCKx_VID[6:0] is set to 7b000 0000, the output voltage slews down to 0.5 V first, and then drifts down to 0 V as the SMPS stops switching. Subsequently, if a BUCKx_VID[6:0] is set to a value (neither 7b000 0000 nor 7b000 0001) when the output voltage is less than 0.5 V, the VR ramps up to 0.5 V first with soft-start kicking in, then it slews up to the target voltage in the aforementioned slew rate. NOTE A fixed 200 µs of soft-start time is reserved for VOUT to reach 0.5 V. In this case, however, the SMPS is not forced into PWM mode because it otherwise could cause VOUT to droop momentarily if VOUT is drifting above 0.5 V for any reason. Figure 6-6. DVS Timing Diagram II

OUT IN(MIN) OUT ripple(min) max IN(MIN) sw(max) V (V V ) I L V f u u ripple(min) DSON LIM ILIM LIMREF I R 8 1.3 I 2R I § · u u u ¨ ¸ © ¹ TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated

6.3.3.4 Current Limit

The buck controllers (BUCK1, BUCK2, and BUCK6) have inductor-valley current-limit architecture and the current limit is programmable by an external resistor at the ILIMx pin. Equation 1 shows the calculation for a desired resistor value, depending on specific application conditions. ILIMREF is the current source out of the ILIMx pin that is typically 50 µA, and RDSON is the maximum channel resistance of the low-side FET. The scaling factor is 1.3 to take into account all errors and temperature variations of RDSON, ILIMREF, and RILIM. Finally, 8 is another scaling factor associated with ILIMREF. where

  • ILIM is the target current limit. An appropriate margin must be allowed when determining ILIM from maximum output DC load current.
  • Iripple(min) is the minimum peak-to-peak inductor ripple current for a given VOUT. (1) where
  • Lmax is maximum inductance
  • fsw(max) is maximum switching frequency
  • VIN(MIN) minimum input voltage to the external power stage (2) The buck converter limit inductor peak current cycle-by-cycle to IIND_LIM is specified in Section 5.8, Electrical Characteristics: Synchronous Buck Converters.

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6.3.4 LDOs and Load Switches

6.3.4.1 VTT LDO

Powered from the BUCK6 output (VDDQ), the VTT LDO tracks VDDQ and regulates to half of the VDDQ voltage for proper DDR termination. The LDO current limit is OTP dependent, and it is designed specifically to power DDR memory. The VTT LDO is enabled by assertion (L → H) of the SLP_S0B pin and is disabled by deassertion (H → L) of the same pin. The LDO core is a transconductance amplifier with large gain, and it drives a current output stage that either sources or sinks current depending on the deviation of VTTFB pin voltage from the target regulation voltage.

6.3.4.2 LDOA1–LDOA3

The TPS65094x device integrates three optional general-purpose LDOs. LDOA1 is powered from a 5-V supply through the DRV5V_2_A1 pin and it can be factory configured to be an Always-On rail as long as a valid power supply is available at VSYS. See Table 6-5 for LDOA1 output voltage options. LDOA2 and LDOA3 share a power input pin (PVINLDOA2_A3). The output regulation voltages are set by writing to LDOAx_VID[3:0] bits (Reg 0x9A, 0x9B, and 0xAE). See Table 6-6 for LDOA2 and LDOA3 output voltage options. LDOA1 is controlled by LDOA1CTRL register. LDOA2 and LDOA3 can be controlled either by the LDOLS_EN pin or by writing to the LDOA2_EN bit (Reg 0xA0) and the LDOA3_EN bit (Reg 0xA1) as long as LDOLS_EN is low. Table 6-5. LDOA1 Output Voltage Options VID Bits VOUT VID Bits VOUT VID Bits VOUT VID Bits VOUT 0000 1.35 0100 1.8 1000 2.3 1100 2.85 0001 1.5 0101 1.9 1001 2.4 1101 3.0 0010 1.6 0110 2.0 1010 2.5 1110 3.3 0011 1.7 0111 2.1 1011 2.7 1111 Not Used Table 6-6. LDOA2 and LDOA3 Output Voltage Options VID Bits VOUT VID Bits VOUT VID Bits VOUT VID Bits VOUT 0000 0.70 0100 0.90 1000 1.10 1100 1.30 0001 0.75 0101 0.95 1001 1.15 1101 1.35 0010 0.80 0110 1.00 1010 1.20 1110 1.40 0011 0.85 0111 1.05 1011 1.25 1111 1.50

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6.3.4.3 Load Switches

The PMIC features three general-purpose load switches. SWA1 has a power input pin (PVINSWA1), while SWB1 and SWB2 share a power input pin (PVINSWB1_B2). All switches have built-in slew rate control during start-up to limit the inrush current. Table 6-7 lists the control signals for enabling and disabling each LDO and load switch. (1) For LPDDR3 and LPDDR4 memory, SWB1_2 is configured to V1P8U and controlled by SLP_S4B. For DDR3L memory, SWB1_2 is configured to either V3P3S or V1P8S and controlled by SLP_S3B. (2) When LDOLS_EN = 0, the user can write to enable bits in Reg 0xA0–Reg 0xA1 to enable or disable the rails. Alternatively, all of them could be factory configured to be part of sequence along with other voltage rails. Pin name changed to SWA1_EN when LDOA1 is factory programmed to always on. (3) When SWA1_EN = 0, the user can write to enable bits in Reg 0xA0–Reg 0xA1 to enable or disable the rails. Alternatively, all of them could be factory configured to be part of sequence along with other voltage rails. Pin name changed to LDOLS_EN when LDOA1 is not factory programmed to always on. (4) BUCK6_PG should be asserted as well. Table 6-7. Summary of LDO and Load Switch Control CONTROL SIGNAL RAIL SLP_S4B or SLP_S3B(1) SWB1_2 LDOLS_EN(2) LDOA2, LDOA3, SWA1 SWA1_EN(3) SWA1 SLP_S0B(4) VTT LDO

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated (1) When PMIC is first enabled, SLP_S4B and SLP_S3B are to be treated as if they are low (actual state of signal ignored) until the deassertion of RSMRSTB (L → H). (2) When PMIC is first enabled, SLP_S0B are to be treated as if they are high (actual state of signal ignored) until the assertion of PCH_PWROK (L → H). (3) THERMTRIPB is to be treated as if it is high (actual state of signal ignored) until the deassertion of RSMRSTB (L → H).

6.3.5 Power Sequencing and VR Control

When a valid power source is available at VSYS (VSYS ≥ 5.6 V), internal analog blocks including LDO5 and LDO3P3 are enabled. For part numbers with LDOA1 set as an always on rail, the PMIC leaves reset and I2C communication is available as soon as LDO3P3 and LDO5 power goods are confirmed. For part numbers with LDOA1 set as a general-purpose LDO, the PMIC remains in reset until PMICEN is set high. Five input pins of the TPS65094x device are driven by a host or by external-controller (EC) defined power states that transition from one to another in sequence. Table 6-8 shows various system-level power states. Also, Table 6-9 summarizes a list of active rails in each power state. The sequencing for the transitions between these states is described in the following sections. If a rail is either disabled by I2C or OTP programming, then it is not enabled by the following sequences. For example, VTT LDO is not enabled for LPDDR4 OTPs. Table 6-8. Power State and Corresponding I/O Status POWER STATE SIGNALS TO PMIC SIGNALS FROM PMIC PMICEN SLP_S4B(1) SLP_S3B(1) SLP_S0B(2) THERMTRIPB(3) RSMRSTB PCH_PWROK G3 0 0 0 0 0 0 0 S4/S5 1 0 0 1 1 1 0 S3 1 1 0 1 1 1 0 S0iX 1 1 1 0 1 1 1 S0 1 1 1 1 1 1 1 (1) For LPDDR3 and LPDDR4 (2) For DDR3L Table 6-9. Active Rails in Each Power State POWER STATE ACTIVE RAILS S4/S5 BUCK1 (VNN), BUCK4 (V1P8A), BUCK5 (V1P24A) S3 Rails in S4/S5 + SWB1_2 (V1P8U)(1), BUCK6 (VDDQ) S0 Rails in S3 + SWB1_2(2), VTT, BUCK2 (VCCGI), BUCK3 (VCCRAM) S0iX Rails in S0 – BUCK1 (VNN), BUCK2 (VCCGI), BUCK3 (VCCRAM), VTT

LDO5V/3.3V LDOA1(b) Ext. 5V/3.3V VR PMICEN BUCK1 (VNN) BUCK4 (V1P8A) BUCK5 (V1P24A) RSMRSTB T3 ™ 10ms SLP_S4B SWB1_2 (V1P8U)(1) T4 BUCK6 (VDDQ) VTT SLP_S3B BUCK3 (VCCRAM) BUCK2 (VCCGI) SLP_S0B T6 ˜ 100us PCH_PWROK T8 = PWROKDELAY S5 S5/S4 S3 S0 5.6 V THERMTRIPB SET VID by Host SWB1_2 (2) (a) LDOA1 1RW³$OZD\\V2Q´ (b) LDOA1 ³$OZD\\V2Q´ (1) LPDDR3 and LPDDR4 (2) DDR3L TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated

6.3.5.1 Cold Boot

Figure 6-7. Cold Boot Sequence

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated As VSYS crosses above VSYS_UVLO_5V + VSYS_UVLO+5V_HYS, the cold-boot sequence is initiated by pulling the PMICEN pin high followed by driving the remaining control pins high in order. SLP_S3B and SLP_S4B may go high at the same time. SLP_S0B is not defined until the first transition to S0 after RSMRSTB deassertion. SLP_S0B is defined for all Sx power-state transitions after the first transition to S0. Table 6-10 lists definitions of the timing delays. These timing delays also apply to the subsequent sequences. T0 to T10 are factory programmable to 0 ms, 2 ms, 4 ms, 8 ms, 16 ms, 24 ms, 32 ms, or 64 ms. Table 6-10. Definition of Delays During Cold Boot Sequence DELAY DESCRIPTION TYP VALUE UNIT T0 PMICEN to BUCK1 (VNN) enable 0 ms T1 PMICEN to BUCK4 (V1P8A) enable 4 ms T2 BUCK4 PG to BUCK5 (V1P24A) enable 0 ms T3 BUCK5 PG to RSMRSTB deassertion 10 ms T4 SLP_S4B deassertion to SWB1_2 (V1P8U) enable 0 ms T5 SLP_S4B deassertion to BUCK6 (VDDQ) enable 4 ms T6 Logical AND of BUCK6 PG, SLP_S0B, SLP_S3B, and SLP_S4B to VTT enable 0 ms T7 SLP_S0B deassertion to BUCK3 (VCCRAM) enable 2 ms T8 Logical AND of all PGs (except BUCK2) to PCH_PWROK assertion. User selectable from POK_DELAY register. 100 ms

SLP_S3B VTT SLP_S0B PMICEN SLP_S4B SWB1_2 (2) PCH_PWROK S4/S5S3S0 BUCK1 (VNN) BUCK3 (VCCRAM) BUCK2 (VCCGI) BUCK4 (V1P8A) BUCK5 (V1P24A) RSMRSTB SWB1_2 (V1P8U)(1) BUCK6 (VDDQ) 30ms to 60 ms (1) LPDDR3 and LPDDR4 (2) DDR3L TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated

6.3.5.2 Cold OFF

Figure 6-8. Cold OFF Sequence Cold OFF sequence is initiated by pulling the SLP_S3B pin low in the S0 state, followed by SLP_S4B, SLP_S0B, and PMICEN.

SLP_S0B VTT BUCK1 (VNN) PCH_PWROK S0iXS0 BUCK2 (VCCGI) BUCK3 (VCCRAM) SLP_S3B SLP_S4B 3.3 V 1.8 V 1.05 V 0 V 0 V Host sets VR to 0 V through I2C Host sets VR to 0 V through I2C 0 V ˜ 100 µs VID VID VID SET VID by Host ˜ 5 ms TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated

6.3.5.3 Connected Standby Entry and Exit

Figure 6-9. Connected Standby Entry and Exit Sequence S0 to S0iX (Connected Standby) entry and exit occurs when SLP_S0B is pulled low and high, respectively. In Connected Standby state, VTT LDO is turned off, but all PGOODs remain asserted. BUCK1–BUCK3 are not disabled, but instead stop switching while BUCK4–BUCK6 remain in regulation. SWB1_2 also stays enabled. On entry, BUCK2 and BUCK3 decay to 0 V with their VID registers retaining the last programmed values to which the BUCKs ramp back up on exit. The host can write to BUCK2CTRL and BUCK3CTRL registers regardless of the state of the SLP_S0B pin while SLP_S3B and SLP_S4B are high, which means that BUCK2 and BUCK3 can be changed to ramp to a different voltage upon exiting S0iX than they had when entering S0iX state. BUCK1 ramps back up to the default value (1.05 V). Table 6-11 summarizes status of each VR in Connected Standby state. Table 6-11. Summary of Rails on Connected Standby Entry and Exit VR S0 → S0IX S0IX → S0 BUCK1 (VNN) 0 V 1.05 V BUCK2 (VCCGI) 0 V 0 V BUCK3 (VCCRAM) 0 V 1.05 V BUCK4 (V1P8A) VID value VID value BUCK5 (V1P24A) VID value VID value BUCK6 (VDDQ) OTP dependent OTP dependent VTT LDO (VTT) OFF VDDQ / 2 SWB1_2 ON ON

SLP_S4B SLP_S0B VTT BUCK1 (VNN) BUCK2 (VCCGI) BUCK3 (VCCRAM) SLP_S3B 0 V 1.05 V 0 V 0 V PCH_PWROK 1.8 V VID ˜ 100 µs ˜ 5 ms SET VID by Host SWB1_2 (2) (1) LPDDR3 and LPDDR4 (2) DDR3L SWB1_2 (V1P8U) (1) TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated

6.3.5.4 S0 to S3 Entry and Exit

Assertion of SLP_S3B (H → L) triggers S3 entry. Deassertion of SLP_S3B causes S3 exit and S0 entry as depicted in Figure 6-10. On S3 exit, BUCK1–BUCK3 behave exactly the same way as they do on S0iX exit, which is explained in Section 6.3.5.3, Connected Standby Entry and Exit. Figure 6-10. S3 Entry and Exit Sequence

SLP_S0B VTT BUCK1 (VNN) BUCK2 (VCCGI) SLP_S3B PCH_PWROK SWB1_2 (2) S3S5/S4 SLP_S4B BUCK6 (VDDQ) 1.8 V

1.05 VVID

˜ 100 µs 0 V ˜ 5 ms 0 V SET VID by Host BUCK3 (VCCRAM) 0 V SWB1_2 (V1P8U) (1) ˜ 2 ms 30 ms to 60 ms (1) LPDDR3 and LPDDR4 (2) DDR3L TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated

6.3.5.5 S0 to S4/5 Entry and Exit

Assertion of the SLP_S4B (H → L) after the S3 entry pushes the sequence further down to S4/5 where SWB1_2 (for LPDDR3 or LPDDR4) and BUCK6 are disabled. Any rails not shown are essentially the same as the S0 to S3 entry and exit case described in Figure 6-11. Figure 6-11. S4/5 Entry and Exit Sequence

PCH_PWROK 444 ns (nominal with ±1% variation) VSYS BUCKx VTT 5.4 V TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated

6.3.5.6 Emergency Shutdown

When VSYS crosses below VSYS_UVLO_5V, all Power Good pins are deasserted; after 444 ns (nominal) of delay, all VRs shut down (see Figure 6-12). Upon shutdown, all internal discharge resistors are set to 100 Ω to ensure timely decay of all VR outputs. VSYS crossing above VSYS_UVLO_5V + VSYS_UVLO_5V_HYS and assertion of PMICEN is required to re-enable the VRs. Other conditions that cause emergency shutdown are the following:

  • The die temperature rising above the critical temperature threshold (TCRIT)
  • Falling edge of THERMTRIPB
  • Deassertion of Power Good of any rail or failure to reach power good within 10 ms of enable (configurable) Figure 6-12. Emergency Shutdown Sequence

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6.4 Device Functional Modes

6.4.1 Off Mode

When power supply at the VSYS pin is less than VSYS_UVLO_5V (5.4-V nominal) + VSYS_UVLO_5V_HYS (0.2-V nominal), the device is in off mode, where all output rails are disabled. If the supply voltage is greater than VSYS_UVLO_3V (3.6-V nominal) + VSYS_UVLO_3V_HYS (0.15-V nominal) while it is still less than VSYS_UVLO_5V + VSYS_UVLO_5V_HYS, then the internal band-gap reference (VREF pin) along with LDO3P3 are enabled and regulated at target values.

6.4.2 Standby Mode

When power supply at the VSYS pin rises above VSYS_UVLO_5V + VSYS_UVLO_5V_HYS, the device enters standby mode, where all internal reference and regulators (LDO3P3 and LDO5) are running, and I2C interface and PMICEN pin are ready to respond. All default registers defined in Section 6.6, Register Maps, should now have been loaded from one-time programmable (OTP) memory. Quiescent current consumption in standby mode is specified in Section 5.5, Electrical Characteristics: Total Current Consumption.

6.4.3 Active Mode

The device proceeds to active mode when any output rail is enabled either through an input pin as discussed in Section 6.3.5, Power Sequencing and VR Control, or by writing to the EN bits through I2C. Output regulation voltage can also be changed by writing to the VID bits defined in Section 6.6, Register Maps.

6.5 Programming

6.5.1 I2C Interface

The I2C interface is a 2-wire serial interface developed by NXP™ (formerly Philips Semiconductor) (see the I2C-Bus Specification and user manual, Rev 4, 13 February 2012). The bus consists of a data line (SDA) and a clock line (SCL) with pullup structures. When the bus is idle, both SDA and SCL lines are pulled high. All the I2C compatible devices connect to the I2C bus through open-drain I/O pins, DATA and CLK. A master device, usually a microcontroller or a digital signal processor, controls the bus. The master is responsible for generating the SCL signal and device addresses. The master also generates specific conditions that indicate the start and stop of data transfer. A slave device receives and/or transmits data on the bus under control of the master device. The TPS65094x device works as a slave and supports the following data transfer modes, as defined in the I2C-Bus Specification: standard mode (100 kbps), fast mode (400 kbps), and high-speed mode (1 Mbps). The interface adds flexibility to the power supply solution, enabling programming of most functions to new values depending on the instantaneous application requirements. Register contents are loaded when VSYS higher than VSYS_UVLO_5V is applied to the TPS65094x device. The I2C interface is running from an internal oscillator that is automatically enabled when there is an access to the interface. The data transfer protocol for standard and fast modes are exactly the same, therefore, they are referred to as F/S-mode in this document. The protocol for high-speed mode is different from F/S-mode, and it is referred to as H/S-mode. The TPS65094x device supports 7-bit addressing; however, 10-bit addressing and general call address are not supported. The default device address is 0x5E.

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6.5.1.1 F/S-Mode Protocol

The master initiates data transfer by generating a START condition. The START condition exists when a high-to-low transition occurs on the SDA line while SCL is high (see Figure 6-13). All I2C-compatible devices should recognize a START condition. The master then generates the SCL pulses and transmits the 7-bit address and the read/write direction bit R/W on the SDA line. During all transmissions, the master ensures that data is valid. A valid data condition requires the SDA line to be stable during the entire high period of the clock pulse (see Figure 6-14). All devices recognize the address sent by the master and compare it to their internal fixed addresses. Only the slave device with a matching address generates an acknowledge (see Figure 6-15), by pulling the SDA line low during the entire high period of the ninth SCL cycle. Upon detecting this acknowledge, the master identifies that the communication link with a slave has been established. The master generates further SCL cycles to either transmit data to the slave (R/W bit = 0) or receive data from the slave (R/W bit = 1). In either case, the receiver must acknowledge the data sent by the transmitter. An acknowledge signal can either be generated by the master or by the slave, depending on which one is the receiver. Any 9-bit valid data sequences consisting of 8-bit data and 1-bit acknowledge can continue as long as necessary. To signal the end of the data transfer, the master generates a STOP condition by pulling the SDA line from low to high while the SCL line is high (see Figure 6-13). This STOP condition releases the bus and stops the communication link with the addressed slave. All I2C-compatible devices must recognize the STOP condition. Upon the receipt of a STOP condition, all devices detect that the bus is released, and they wait for a START condition followed by a matching address. Figure 6-13. START and STOP Conditions Figure 6-14. Bit Transfer on the I2C Bus

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6.6 Register Maps

Default value of RESERVED R/W bits must not be written to the opposite value.

6.6.1 VENDORID: PMIC Vendor ID Register (offset = 00h) [reset = 0010 0010]

Figure 6-19. VENDORID Register (offset = 00h) [reset = 0010 0010] Bit 7 6 5 4 3 2 1 0 Bit Name VENDORID[7] VENDORID[6] VENDORID[5] VENDORID[4] VENDORID[3] VENDORID[2] VENDORID[1] VENDORID[0] TPS65094x 0 0 1 0 0 0 1 0 Access R R R R R R R R LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-12. VENDORID Register Field Descriptions Bit Field Type Reset Description 7–0 VENDORID[7:0] R 00100010 Vendor identification register

6.6.2 DEVICEID: PMIC Device and Revision ID Register (offset = 01h) [reset = OTP Dependent]

Figure 6-20. DEVICEID Register (offset = 01h) [reset = OTP Dependent] Bit 7 6 5 4 3 2 1 0 Bit Name REVID[1] REVID[0] OTP_ VERSION[1] OTP_ VERSION[0] PART_ NUMBER[3] PART_ NUMBER[2] PART_ NUMBER[1] PART_ NUMBER[0] TPS650940 0 0 0 0 1 0 0 0 TPS650941 0 0 1 0 1 0 0 1 TPS650942 0 0 0 1 1 0 1 0 TPS650944 0 0 0 0 1 1 0 0 TPS650945 0 0 0 0 1 1 0 1 Access R R R R R R R R LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-13. DEVICEID Register Field Descriptions Bit Field Type Reset Description 7–6 REVID[1:0] R OTP Silicon revision ID 5–4 OTP_VERSION[1:0] R OTP OTP variation ID 00: A 01: B 10: C 11: D 3–0 PART_NUMBER[3:0] R OTP Device part number ID 1000: TPS650940 1001: TPS650941 1010: TPS650942 1011: TPS650943 1100: TPS650944 1101: TPS650945 1110: TPS650946 1111: TPS650947 0000: TPS650948

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6.6.3 IRQ: PMIC Interrupt Register (offset = 02h) [reset = 0000 0000]

Figure 6-21. IRQ Register (offset = 02h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name VENDOR_ IRQ RESERVED RESERVED RESERVED ONOFFSRC RESERVED RESERVED DIETEMP TPS65094x 0 0 0 0 0 0 0 0 Access R/W R R R R/W R R R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-14. IRQ Register Field Descriptions Bit Field Type Reset Description

7 VENDOR_IRQ R/W 0

Vendor-specific interrupt, indicating fault event occurrence. Asserted when either one of following conditions occurs: A. Deassertion of Power Good of any VR B. Overcurrent detection from BUCK1, BUCK2, BUCK6, or VTT LDO C. Die temperature crosses over the hot temperature threshold (THOT) D. Die temperature crosses over the critical temperature threshold (TCRIT) 0: Not asserted 1: Asserted. Host to write 1 to clear.

3 ONOFFSRC R/W 0

Asserted when PMIC shuts down. 0: Not asserted. 1: Asserted. Host to write 1 to clear.

0 DIETEMP R/W 0

Die Temp interrupt. Asserted when PMIC die temperature crosses above the hot temperature threshold (THOT). 0: Not asserted. 1: Asserted. Host to write 1 to clear.

6.6.4 IRQ_MASK: PMIC Interrupt Mask Register (offset = 03h) [reset = 1111 1111]

Figure 6-22. IRQ_MASK Register (offset = 03h) [reset = 1111 1111] Bit 7 6 5 4 3 2 1 0 Bit Name MVENDOR_IRQ RESERVED RESERVED RESERVED MONOFFSRC RESERVED RESERVED MDIETEMP TPS65094x 1 1 1 1 1 1 1 1 Access R/W R R R R/W R R R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-15. IRQ_MASK Register Field Descriptions Bit Field Type Reset Description

7 MVENDOR_IRQ R/W 1

Vendor-specific fault interrupt mask. 0: Not masked 1: Masked

3 MONOFFSRC R/W 1

PMIC shutdown event interrupt mask 0: Not masked 1: Masked

0 MDIETEMP R/W 1

Die temp interrupt mask. 0: Not masked 1: Masked

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6.6.5 PMICSTAT: PMIC Status Register (offset = 04h) [reset = 0000 0000]

Figure 6-23. PMICSTAT Register (offset = 04h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED SDIETEMP TPS65094x 0 0 0 0 0 0 0 0 Access R R R R R R R R LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-16. PMICSTAT Register Field Descriptions Bit Field Type Reset Description

0 SDIETEMP R 0

PMIC die temperature status. 0: PMIC die temperature is below THOT. 1: PMIC die temperature is above THOT.

6.6.6 OFFONSRC: PMIC Power Transition Event Register (offset = 05h) [reset = 0000 0000]

Figure 6-24. OFFONSRC Register (offset = 05h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED RESERVED COLDOFF UVLO OCP CRITTEMP TPS65094x 0 0 0 0 0 0 0 0 Access R R R R R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-17. OFFONSRC Register Field Descriptions Bit Field Type Reset Description

3 COLDOFF R/W 0

Set by PMIC cleared by host. Host writes 1 to this bit to clear it. 0 = Cleared 1 = PMIC was shut down by host through PMIC_EN pin.

2 UVLO R/W 0

Set by PMIC cleared by host. Host writes 1 to this bit to clear it. 0 = Cleared 1 = PMIC was shut down due to a UVLO event (VSYS less 5.4 V). The setting of this bit sets the ONOFFSRC bit in the PMIC_IRQ register.

1 OCP R/W 0

Set by PMIC cleared by host. Host writes 1 to this bit to clear it. 0 = Cleared 1 = PMIC shut down due to a power fault event. The setting of this bit sets the ONOFFSRC bit in the PMIC_IRQ register.

0 CRITTEMP R/W 0

Set by PMIC cleared by host. Host writes 1 to this bit to clear it. 0 = Cleared 1 = PMIC shut down due to the rise of PMIC die temperature above critical temperature threshold (TCRIT). The setting of this bit sets the ONOFFSRC bit in the PMIC_IRQ register.

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6.6.7 BUCK1CTRL: BUCK1 Control Register (offset = 20h) [reset = 0011 1000]

Figure 6-25. BUCK1CTRL Register (offset = 20h) [reset = 0011 1000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED BUCK1_VID[6] BUCK1_VID[5] BUCK1_VID[4] BUCK1_VID[3] BUCK1_VID[2] BUCK1_VID[1] BUCK1_VID[0] TPS65094x 0 0 1 1 1 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-18. BUCK1CTRL Register Field Descriptions Bit Field Type Reset Description 6–0 BUCK1_VID[6:0] R/W 0111000 (1.05 V) This field sets the BUCK1 regulator output regulation voltage in normal mode. Default = 1.05 V. Note that 0 V is a valid setting and all Power Goods stay high when VID is set to 0x00 and (or) SLP_S0B goes low. See Table 6-3 for full details.

6.6.8 BUCK2CTRL: BUCK2 Control Register (offset = 21h) [reset = 0000 0000]

Figure 6-26. BUCK2CTRL Register (offset = 21h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED BUCK2_VID[6] BUCK2_VID[5] BUCK2_VID[4] BUCK2_VID[3] BUCK2_VID[2] BUCK2_VID[1] BUCK2_VID[0] TPS65094x 0 0 0 0 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-19. BUCK2CTRL Register Field Descriptions Bit Field Type Reset Description 6–0 BUCK2_VID[6:0] R/W 0000000 (0 V) This field sets the BUCK2 regulator output regulation voltage in normal mode. Default = 0 V. Note that 0 V is a valid setting and all Power Goods must stay high when VID is set to 0x00 and (or) SLP_S0B goes low. See Table 6-3 for full details.

6.6.9 BUCK3CTRL: BUCK3 Control Register (offset = 23h) [reset = 0001 0001]

Figure 6-27. BUCK3CTRL Register (offset = 23h) [reset = 0001 0001] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED BUCK3_VID[6] BUCK3_VID[5] BUCK3_VID[4] BUCK3_VID[3] BUCK3_VID[2] BUCK3_VID[1] BUCK3_VID[0] TPS65094x 0 0 0 1 0 0 0 1 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-20. BUCK3CTRL Register Field Descriptions Bit Field Type Reset Description 6–0 BUCK3_VID[6:0] R/W 0010001 (1.05 V) This field sets the BUCK3 regulator output regulation voltage in normal mode. Default = 1.05 V. Note that 0 V is a valid setting and all Power Goods must stay high when VID is set to 0x00 and (or) SLP_S0B goes low. See Table 6-4 for full details.

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6.6.10 BUCK4CTRL: BUCK4 Control Register (offset = 25h) [reset = 0011 1101]

Figure 6-28. BUCK4CTRL Register (offset = 25h) [reset = 0011 1101] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED BUCK4_MODE RESERVED TPS650940, TPS650941, TPS65942, and TPS650944 0 0 1 1 1 1 0 1 TPS650945 0 0 1 1 1 1 1 1 Access R R R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-21. BUCK4CTRL Register Field Descriptions Bit Field Type Reset Description

1 BUCK4_MODE R/W 0

This field sets the BUCK4 regulator operating mode. 0 = Automatic mode 1 = Forced PWM mode

6.6.11 BUCK5CTRL: BUCK5 Control Register (offset = 26h) [reset = 0011 1101]

Figure 6-29. BUCK5CTRL Register (offset = 26h) [reset = 0011 1101] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED BUCK5_MODE RESERVED TPS650940, TPS650941, TPS65942, and TPS650944 0 0 1 1 1 1 0 1 TPS650945 0 0 1 1 1 1 1 1 Access R R R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-22. BUCK5CTRL Register Field Descriptions Bit Field Type Reset Description

1 BUCK5_MODE R/W 0

This field sets the BUCK5 regulator operating mode. 0 = Automatic mode 1 = Forced PWM mode

6.6.12 BUCK6CTRL: BUCK6 Control Register (offset = 27h) [reset = 0011 1101]

Figure 6-30. BUCK6CTRL Register (offset = 27h) [reset = 0011 1101] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED BUCK6_MODE RESERVED TPS65094x 0 0 1 1 1 1 0 1 Access R R R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-23. BUCK6CTRL Register Field Descriptions Bit Field Type Reset Description

1 BUCK6_MODE R/W 0

This field sets the BUCK6 regulator operating mode. 0 = Automatic mode 1 = Forced PWM mode

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6.6.13 DISCHCNT1: Discharge Control1 Register (offset = 40h) [reset = 0101 0101]

All xx_DIS[1:0] bits automatically set to 00 when the corresponding VR is enabled. Discharge resistance values listed here are approximate. Figure 6-31. DISCHCNT1 Register (offset = 40h) [reset = 0101 0101] Bit 7 6 5 4 3 2 1 0 Bit Name BUCK4_DIS[1] BUCK4_DIS[0] BUCK3_DIS[1] BUCK3_DIS[0] BUCK2_DIS[1] BUCK2_DIS[0] BUCK1_DIS[1] BUCK1_DIS[0] TPS65094x 0 1 0 1 0 1 0 1 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-24. DISCHCNT1 Register Field Descriptions Bit Field Type Reset Description 7–6 BUCK4_DIS[1:0] R/W 01 BUCK4 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω 5–4 BUCK3_DIS[1:0] R/W 01 BUCK3 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω 3–2 BUCK2_DIS[1:0] R/W 01 BUCK2 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω 1–0 BUCK1_DIS[1:0] R/W 01 BUCK1 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω

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6.6.14 DISCHCNT2: Discharge Control2 Register (offset = 41h) [reset = 0101 0101]

All xx_DIS[1:0] bits automatically set to 00 when the corresponding VR is enabled. Discharge resistance values listed here are approximate. Figure 6-32. DISCHCNT2 Register (offset = 41h) [reset = 0101 0101] Bit 7 6 5 4 3 2 1 0 Bit Name LDOA2_DIS[1] LDOA2_DIS[0] SWA1_DIS[1] SWA1_DIS[0] BUCK6_DIS[1] BUCK6_DIS[0] BUCK5_DIS[1] BUCK5_DIS[0] TPS65094x 0 1 0 1 0 1 0 1 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-25. DISCHCNT2 Register Field Descriptions Bit Field Type Reset Description 7–6 LDOA2_DIS[1:0] R/W 01 LDOA2 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω 5–4 SWA1_DIS[1:0] R/W 01 SWA1 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω 3–2 BUCK6_DIS[1:0] R/W 01 BUCK6 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω 1–0 BUCK5_DIS[1:0] R/W 01 BUCK5 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω

6.6.15 DISCHCNT3: Discharge Control3 Register (offset = 42h) [reset = 0000 0101]

All xx_DIS[1:0] bits automatically set to 00 when the corresponding VR is enabled. Discharge resistance values listed here are approximate. Figure 6-33. DISCHCNT3 Register (offset = 42h) [reset = 0000 0101] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED RESERVED SWB1_DIS[1] SWB1_DIS[0] LDOA3_DIS[1] LDOA3_DIS[0] TPS65094x 0 0 0 0 0 1 0 1 Access R R R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-26. DISCHCNT3 Register Field Descriptions Bit Field Type Reset Description 3–2 SWB1_DIS[1:0] R/W 01 SWB1 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω 1–0 LDOA3_DIS[1:0] R/W 01 LDOA3 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω

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6.6.16 POK_DELAY: PCH_PWROK Delay Register (offset = 43h) [reset = 0000 0111]

Programmable Power Good delay for PCH_PWROK pin, measured from the moment when all VRs reach the regulation range to Power Good assertion. Figure 6-34. POK_DELAY Register (Offset = 43h) [reset = 0000 0111] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED RESERVED RESERVED PWROKDELAY [2] PWROKDELAY [1] PWROKDELAY [0] TPS65094x 0 0 0 0 0 1 1 1 Access R R R R R R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-27. POK_DELAY Register Field Descriptions Bit Field Type Reset Description 2–0 PWROKDELAY[2:0] R/W 111 Programmable delay measured from the moment all rails have reached regulation voltage to assertion of PCH_PWROK. All values have ±10% variation. 000 = 2.5 ms 001 = 5.0 ms 010 = 10 ms 011 = 15 ms 100 = 20 ms 101 = 50 ms 110 = 75 ms 111 = 100 ms (default)

6.6.17 FORCESHUTDN: Force Emergency Shutdown Control Register (offset = 91h) [reset

= 0000 0000] Figure 6-35. FORCESHUTDN Register (offset = 91h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED SDWN TPS65094x 0 0 0 0 0 0 0 0 Access R R R R R R R R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-28. FORCESHUTDN Register Field Descriptions Bit Field Type Reset Description

0 SDWN R/W 0

Forces reset of the PMIC. The bit is self-clearing. 0 = No action 1 = PMIC is forced to shut down.

6.6.18 BUCK4VID: BUCK4 VID Register (offset = 94h) [reset = 0010 1111]

Figure 6-36. BUCK4VID Register (offset = 94h) [reset = 0010 1111] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED BUCK4_VID[6] BUCK4_VID[5] BUCK4_VID[4] BUCK4_VID[3] BUCK4_VID[2] BUCK4_VID[1] BUCK4_VID[0] TPS65094x 0 0 1 0 1 1 1 1 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-29. BUCK4VID Register Field Descriptions Bit Field Type Reset Description 6–0 BUCK4_VID[6:0] R/W 0101111 (1.80 V) This field sets the BUCK4 regulator output regulation voltage in normal mode. Default = 1.80 V. Note that 0 V is a valid setting and all Power Goods must stay high when VID is set to 0x00. See Table 6-4 for full details.

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6.6.19 BUCK5VID: BUCK5 VID Register (offset = 96h) [reset = 0100 1011]

Figure 6-37. BUCK5VID Register (Offset = 96h) [reset = 0100 1011] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED BUCK5_VID[6] BUCK5_VID[5] BUCK5_VID[4] BUCK5_VID[3] BUCK5_VID[2] BUCK5_VID[1] BUCK5_VID[0] TPS65094x 0 1 0 0 1 0 1 1 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-30. BUCK5VID Register Field Descriptions Bit Field Type Reset Description 6–0 BUCK5_VID[6:0] R/W 1001011 (1.24 V) This field sets the BUCK5 regulator output regulation voltage in normal mode. Default = 1.24 V. Note that 0 V is a valid setting and all Power Goods stay high when VID is set to 0x00. See Table 6-3 for full details.

6.6.20 BUCK6VID: BUCK6 VID Register (offset = 98h) [reset = OTP Dependent]

Figure 6-38. BUCK6VID Register (Offset = 98h) [reset = OTP Dependent] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED BUCK6_VID[6] BUCK6_VID[5] BUCK6_VID[4] BUCK6_VID[3] BUCK6_VID[2] BUCK6_VID[1] BUCK6_VID[0] TPS650940, TPS650944 and TPS650945 0 0 1 1 1 1 0 1 TPS650941 0 1 0 0 0 1 1 1 TPS650942 0 1 0 1 0 1 1 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-31. BUCK6VID Register Field Descriptions Bit Field Type Reset Description 6–0 BUCK6_VID[6:0] R/W TPS650940, TPS650944, and TPS650945: 0111101 (1.1 V) TPS650941: 1000111 (1.20 V) TPS650942: 1010110 (1.35 V) This field sets the BUCK6 regulator output regulation voltage in normal mode. Default = OTP Dependent. Note that 0 V is a valid setting and all Power Goods stay high when VID is set to 0x00. See Table 6-3 for full details.

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6.6.21 LDOA2VID: LDOA2 VID Register (offset = 9Ah) [reset = OTP Dependent]

LDOA2_SLPVID is used when SLP_S0B is low. Keep LDOA2_SLPVID equal to LDOA2_VID if sleep functionality is not desired. Figure 6-39. LDOA2VID Register (offset = 9Ah) [reset = OTP Dependent] Bit 7 6 5 4 3 2 1 0 Bit Name LDOA2_ SLPVID[1] LDOA2_ SLPVID[2] LDOA2_ SLPVID[1] LDOA2_ SLPVID[0] LDOA2_VID[3] LDOA2_VID[2] LDOA2_VID[1] LDOA2_VID[0] TPS650940, TPS650941, TPS650942, and TPS650945 1 0 1 0 1 0 1 0 TPS650944 0 0 0 0 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-32. LDOA2VID Register Field Descriptions Bit Field Type Reset Description 7–4 LDOA2_SLPVID[3:0] R/W TPS650940, TPS650941, TPS650942, and TPS650945: 1010 (1.2 V) TPS650944: 0000 (0.7 V) This field sets the LDOA2 regulator output regulation voltage in sleep mode. Default = OTP Dependent. See Table 6-6 for full details. 3–0 LDOA2_VID[3:0] R/W TPS650940, TPS650941, TPS650942, and TPS650945: 1010 (1.2 V) TPS650944: 0000 (0.7 V) This field sets the LDOA2 regulator output regulation voltage in normal mode. Default = OTP Dependent. See Table 6-6 for full details.

6.6.22 LDOA3VID: LDOA3 VID Register (offset = 9Bh) [reset = OTP Dependent]

LDOA3_SLPVID is used when SLP_S0B is low. Keep LDOA3_SLPVID equal to LDOA3_VID if sleep functionality is not desired. Figure 6-40. LDOA3VID Register (offset = 9Bh) [reset = OTP Dependent] Bit 7 6 5 4 3 2 1 0 Bit Name LDOA3_ SLPVID[3] LDOA3_ SLPVID[2] LDOA3_ SLPVID[1] LDOA3_ SLPVID[0] LDOA3_VID[3] LDOA3_VID[2] LDOA3_VID[1] LDOA3_VID[0] TPS650940, TPS650941, TPS650942, and TPS650945 1 0 1 1 1 0 1 1 TPS650944 0 0 0 0 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-33. LDOA3VID Register Field Descriptions Bit Field Type Reset Description 7–4 LDOA3_SLPVID[3:0] R/W TPS650940, TPS650941, TPS650942, and TPS650945: 1011 (1.25 V) TPS650944: 0000 (0.7 V) This field sets the LDOA3 regulator output regulation voltage in sleep mode. Default = OTP Dependent. See Table 6-6 for full details. 3–0 LDOA3_VID[3:0] R/W TPS650940, TPS650941, TPS650942, and TPS650945: 1011 (1.25 V) TPS650944: 0000 (0.7 V) This field sets the LDOA3 regulator output regulation voltage in normal mode. Default = OTP Dependent. See Table 6-6 for full details.

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6.6.23 VR_CTRL1: BUCK1-3 Control Register (offset = 9Ch) [reset = 0000 0111]

Figure 6-41. VR_CTRL1 Register (offset = 9Ch) [reset = 0000 0111] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED BUCK3_MODE BUCK2_MODE BUCK1_MODE BUCK3_ DISABLEB BUCK2_ DISABLEB BUCK1_ DISABLEB TPS650940, TPS650941, TPS650942, and TPS650944 0 0 0 0 0 1 1 1 TPS650945 0 0 1 0 0 1 1 1 Access R R R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-34. VR_CTRL1 Register Field Descriptions Bit Field Type Reset Description

5 BUCK3_MODE R/W 0

This field sets the BUCK3 regulator operating mode. 0 = Automatic mode 1 = Forced PWM mode

4 BUCK2_MODE R/W 0

This field sets the BUCK2 regulator operating mode. 0 = Automatic mode 1 = Forced PWM mode

3 BUCK1_MODE R/W 0

This field sets the BUCK1 regulator operating mode. 0 = Automatic mode 1 = Forced PWM mode

2 BUCK3_DISABLEB R/W 1

BUCK3 Active Low Disable bit. Writing 0 to this bit forces BUCK3 to turn off regardless of status of enable pins (PMICEN, SLP_Sx). Has priority over BUCK3_EN. 0: Disabled 1: BUCK3 operates normally.

1 BUCK2_DISABLEB R/W 1

BUCK2 Active Low Disable bit. Writing 0 to this bit forces BUCK2 to turn off regardless of status of enable pins (PMICEN, SLP_Sx). Has priority over BUCK2_EN. 0: Disabled 1: BUCK2 operates normally.

0 BUCK1_DISABLEB R/W 1

BUCK1 Active Low DISABLE bit. Writing 0 to this bit forces BUCK1 to turn off regardless of status of enable pins (PMICEN, SLP_Sx). Has priority over BUCK1_EN. 0: Disabled 1: BUCK1 operates normally.

6.6.24 VR_CTRL2: VR Enable Register (offset = 9Eh) [reset = 0000 0000]

Figure 6-42. VR_CTRL2 Register (offset = 9Eh) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name LDOA2_EN SWA1_EN BUCK6_EN BUCK5_EN BUCK4_EN BUCK3_EN BUCK2_EN BUCK1_EN TPS65094x 0 0 0 0 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-35. VR_CTRL2 Register Field Descriptions Bit Field Type Reset Description

7 LDOA2_EN R/W 0

LDOA2 Enable bit. 0: Enabled if LDOLS_EN = 1 1: Enabled regardless of LDOLS_EN state

6 SWA1_EN R/W 0

SWA1 Enable bit. 0: Enabled if LDOLS_EN pin or SWA1_EN pin = 1 1: Enabled regardless of LDOLS_EN or SWA1_EN state

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5 BUCK6_EN R/W 0

BUCK6 Enable bit. 0: BUCK6 operates normally. 1: Enabled regardless of power sequencing

4 BUCK5_EN R/W 0

BUCK5 Enable bit. 0: BUCK5 operates normally. 1: Enabled regardless of power sequencing

3 BUCK4_EN R/W 0

BUCK4 Enable bit. 0: BUCK4 operates normally. 1: Enabled regardless of power sequencing

2 BUCK3_EN R/W 0

BUCK3 Enable bit. BUCK3_DISABLEB has priority over BUCK3_EN. 0: BUCK3 operates normally. 1: Enabled regardless of power sequencing, unless BUCK3_DISABLEB = 0

1 BUCK2_EN R/W 0

BUCK2 Enable bit. BUCK2_DISABLEB has priority over BUCK2_EN. 0: BUCK2 operates normally. 1: Enabled regardless of power sequencing, unless BUCK2_DISABLEB = 0

0 BUCK1_EN R/W 0

BUCK1 Enable bit. BUCK1_DISABLEB has priority over BUCK1_EN. 0: BUCK1 operates normally. 1: Enabled regardless of power sequencing, unless BUCK1_DISABLEB = 0

6.6.25 VR_CTRL3: VR Enable/Disable Register (offset = 9Fh) [reset = 0111 0000]

Figure 6-43. VR_CTRL3 Register (Offset = 9Fh) [reset = 0111 0000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED SWB1_2_ DISABLEB SWA1_ DISABLEB VTT_ DISABLEB VTT_EN RESERVED SWB1_2_EN LDOA3_EN TPS650940, TPS650944, and TPS650945 0 1 1 0 1 0 0 0 TPS650941 and TPS650942 0 1 1 1 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

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6 SWB1_2_DISABLEB R/W 1

SWB1_2 Active Low Disable Bit. Writing 0 to this bit forces SWB1_2 to turn off regardless of status of enable pins (PMICEN, SLP_Sx). Has priority over SWB1_2_EN. 0: Disabled 1: SWB1_2 operates normally.

5 SWA1_DISABLEB R/W 1

SWA1 Active Low Disable Bit. Writing 0 to this bit forces SWA1 to turn off regardless of status of enable pins (PMICEN, SLP_Sx). Has priority over SWA1_EN. 0: Disabled 1: SWA1 operates normally.

4 VTT_DISABLEB R/W

TPS650940, TPS650944, and TPS650945: 0 TPS650941 and TPS650942: 1 VTT_LDO Active Low Disable Bit. Writing 0 to this bit forces VTT_LDO to turn off regardless of status of enable pins (PMICEN, SLP_Sx). Has priority over VTT_EN. 0: Disabled 1: VTT_LDO operates normally.

3 VTT_EN R/W

TPS650940, TPS650944 and TPS650945: 1 TPS650941 and TPS650942: 0 VTT_LDO Enable bit. VTT_DISABLEB has priority over VTT_EN. 0: VTT_LDO operates normally. 1: Enabled regardless of power sequencing, unless VTT_DISABLEB = 0

1 SWB1_2_EN R/W 0

SWB1_2_Enable bit. SWB1_2_DISABLEB has priority over SWB1_2_EN. 0: SWB1_2 operates normally. 1: Enabled regardless of power sequencing, unless SWB1_2_DISABLEB = 0

0 LDOA3_EN R/W 0

LDOA3 Enable bit. 0: Enabled if LDOLS_EN = 1 1: Enabled regardless of LDOLS_EN state

6.6.26 GPO_CTRL: GPO Control Register (offset = A1h) [reset = 0010 0000]

Figure 6-44. GPO_CTRL Register (offset = A1h) [reset = 0010 0000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED GPO_LVL RESERVED RESERVED RESERVED RESERVED RESERVED TPS65094x 0 0 1 0 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-37. GPO_CTRL Register Field Descriptions Bit Field Type Reset Description

5 GPO_LVL R/W 1

Open-drain GPO output level bit. 0: The pin is driven to logic low. 1: The pin is high impedance.

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6.6.27 PWR_FAULT_MASK1: VR Power Fault Mask1 Register (offset = A2h) [reset = 1100 0000]

Figure 6-45. PWR_FAULT_MASK1 Register (offset = A2h) [reset = 1100 0000] Bit 7 6 5 4 3 2 1 0 Bit Name LDOA2_ FLTMSK SWA1_ FLTMSK BUCK6_ FLTMSK BUCK5_ FLTMSK BUCK4_ FLTMSK BUCK3_ FLTMSK BUCK2_ FLTMSK BUCK1_ FLTMSK TPS65094x 1 1 0 0 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-38. PWR_FAULT_MASK1 Register Field Descriptions Bit Field Type Reset Description

7 LDOA2_FLTMSK R/W 1

LDOA2 Power Fault Mask. When masked, power fault from LDOA2 does not cause PMIC shutdown. 0: Not masked 1: Masked

6 SWA1_FLTMSK R/W 1

SWA1 Power Fault Mask. When masked, power fault from SWA1 does not cause PMIC shutdown. 0: Not masked 1: Masked

5 BUCK6_FLTMSK R/W 0

BUCK6 Power Fault Mask. When masked, power fault from BUCK6 does not cause PMIC shutdown. 0: Not masked 1: Masked

4 BUCK5_FLTMSK R/W 0

BUCK5 Power Fault Mask. When masked, power fault from BUCK5 does not cause PMIC shutdown. 0: Not masked 1: Masked

3 BUCK4_FLTMSK R/W 0

BUCK4 Power Fault Mask. When masked, power fault from BUCK4 does not cause PMIC shutdown. 0: Not masked 1: Masked

2 BUCK3_FLTMSK R/W 0

BUCK3 Power Fault Mask. When masked, power fault from BUCK3 does not cause PMIC shutdown. 0: Not masked 1: Masked

1 BUCK2_FLTMSK R/W 0

BUCK2 Power Fault Mask. When masked, power fault from BUCK2 does not cause PMIC shutdown. 0: Not masked 1: Masked

0 BUCK1_FLTMSK R/W 0

BUCK1 Power Fault Mask. When masked, power fault from BUCK1 does not cause PMIC shutdown. 0: Not masked 1: Masked

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6.6.28 PWR_FAULT_MASK2: VR Power Fault Mask2 Register (offset = A3h) [reset = 0011 0111]

Figure 6-46. PWR_FAULT_MASK2 Register (offset = A3h) [reset = 0011 0111] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED V5ANA_ FLTMSK LDOA1_ FLTMSK VTT_ FLTMSK SWB1_2_ FLTMSK[1] SWB1_2_ FLTMSK[0] LDOA3_ FLTMSK TPS65094x 0 0 1 1 0 1 1 1 Access R R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-39. PWR_FAULT_MASK2 Register Field Descriptions Bit Field Type Reset Description

5 V5ANA_FLTMSK R/W 1

V5ANA Power Fault Mask. When masked, power fault from V5ANA does not cause PMIC shutdown. 0: Not masked 1: Masked

4 LDOA1_FLTMSK R/W 1

LDOA1 Power Fault Mask. When masked, power fault from LDOA1 does not cause PMIC shutdown. 0: Not masked 1: Masked

3 VTT_FLTMSK R/W 0

VTT LDO Power Fault Mask. When masked, power fault from VTT LDO does not cause PMIC shutdown. 0: Not Masked 1: Masked 2–1 SWB1_2_FLTMSK R/W 11 SWB1_2 Power Fault Mask. When masked, power fault from SWB1_2 does not cause PMIC shutdown. 00: Not masked 11: Masked 01-10 = RESERVED

0 LDOA3_FLTMSK R/W 1

LDOA3 Power Fault Mask. When masked, power fault from LDOA3 does not cause PMIC shutdown. 0: Not masked 1: Masked

6.6.29 DISCHCNT4: Discharge Control4 Register (offset = ADh) [reset = 0110 0001]

Figure 6-47. DISCHCNT4 Register (offset = ADh) [reset = 0110 0001] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED VTT_DIS RESERVED RESERVED RESERVED RESERVED TPS65094x 0 1 1 0 0 0 0 1 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-40. DISCHNT4 Register Field Descriptions Bit Field Type Reset Description

4 VTT_DIS R/W 0

VTT_LDO discharge resistance 0 = No discharge 1 = 100 Ω

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6.6.30 LDOA1CTRL: LDOA1 Control Register (offset = AEh) [reset = OTP Dependent]

Figure 6-48. LDOA1CTRL Register (offset = AEh) [reset = OTP Dependent] Bit 7 6 5 4 3 2 1 0 Bit Name LDOA1_DIS[1] LDOA1_DIS[0] LDOA1_SDWN_ CONFIG LDOA1_VID[3] LDOA1_VID[2] LDOA1_VID[1] LDOA1_VID[0] LDOA1_EN TPS650940, TPS650941, TPS650942, and TPS650945 0 1 1 1 1 1 0 0 TPS650944 0 1 1 0 1 0 0 1 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-41. LDOA1CTRL Register Field Descriptions Bit Field Type Reset Description 7–6 LDOA1_DIS[1:0] R/W 01 LDOA1 discharge resistance 00: No discharge 01: 100 Ω 10: 200 Ω 11: 500 Ω

5 LDOA1_SDWN_CONFIG R/W 1

Control for Disabling LDOA1 during Emergency Shutdown 0: LDOA1 will turn off during Emergency Shutdown. 1: LDOA1 will not turn off during Emergency Shutdown as long as LDOA1_EN = 1. 4–1 LDOA1_VID[3:0] R/W TPS650940, TPS650941, TPS650942, and TPS650945: 1110 (3.3 V) TPS650944: 0100 (1.8V) This field sets the LDOA3 regulator output regulation voltage in normal mode. Default = OTP Dependent. See Table 6-5 for full details.

0 LDOA1_EN R/W

TPS650940, TPS650941, TPS650942, and TPS650945: 0 TPS650944: 1 LDOA1 Enable Bit. 0: Disable 1: Enable

6.6.31 PG_STATUS1: Power Good Status1 Register (offset = B0h) [reset = 0000 0000]

Figure 6-49. PG_STATUS1 Register (offset = B0h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name LDOA2_ PGOOD RESERVED BUCK6_ PGOOD BUCK5_ PGOOD BUCK4_ PGOOD BUCK3_ PGOOD BUCK2 _PGOOD BUCK1_ PGOOD TPS65094x 0 0 0 0 0 0 0 0 Access R R R R R R R R LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-42. PG_STATUS1 Register Field Descriptions Bit Field Type Reset Description

7 LDOA2_PGOOD R 0

LDOA2 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

5 BUCK6_PGOOD R 0

BUCK6 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Detailed DescriptionCopyright © 2015–2019, Texas Instruments Incorporated Table 6-42. PG_STATUS1 Register Field Descriptions (continued) Bit Field Type Reset Description

4 BUCK5_PGOOD R 0

BUCK5 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

3 BUCK4_PGOOD R 0

BUCK4 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

2 BUCK3_PGOOD R 0

BUCK3 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

1 BUCK2_PGOOD R 0

BUCK2 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

0 BUCK1_PGOOD R 0

BUCK1 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

6.6.32 PG_STATUS2: Power Good Status2 Register (offset = B1h) [reset = 0000 0000]

Figure 6-50. PG_STATUS2 Register (offset = B1h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED LDO5_ PGOOD LDOA1_ PGOOD VTT_ PGOOD RESERVED RESERVED LDOA3_ PGOOD TPS65094x 0 0 0 0 0 0 0 0 Access R R R R R R R R LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-43. PG_STATUS2 Register Field Descriptions Bit Field Type Reset Description

5 LDO5_PGOOD R 0

LDO5 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

4 LDOA1_PGOOD R 0

LDOA1 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

3 VTT_PGOOD R 0

VTT LDO Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

0 LDOA3_PGOOD R 0

LDOA3 Power Good status. 0: The output is not in target regulation range. 1: The output is in target regulation range.

6.6.32.1 PWR_FAULT_STATUS1: Power Fault Status1 Register (offset = B2h) [reset = 0000 0000]

Figure 6-51. PWR_FAULT_STATUS1 Register (offset = B2h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name LDOA2_ PWRFLT RESERVED BUCK6_ PWRFLT BUCK5_ PWRFLT BUCK4_ PWRFLT BUCK3_ PWRFLT BUCK2_ PWRFLT BUCK1_ PWRFLT TPS65094x 0 0 0 0 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Detailed Description Copyright © 2015–2019, Texas Instruments Incorporated Table 6-44. PWR_FAULT_STATUS1 Register Field Descriptions Bit Field Type Reset Description

7 LDOA2_PWRFLT R 0

This fields indicates that LDOA2 has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

5 BUCK6_PWRFLT R 0

This fields indicates that BUCK6 has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

4 BUCK5_PWRFLT R 0

This fields indicates that BUCK5 has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

3 BUCK4_PWRFLT R 0

This fields indicates that BUCK4 has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

2 BUCK3_PWRFLT R 0

This fields indicates that BUCK3 has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

1 BUCK2_PWRFLT R 0

This fields indicates that BUCK2 has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

0 BUCK1_PWRFLT R 0

This fields indicates that BUCK1 has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

6.6.32.2 PWR_FAULT_STATUS2: Power Fault Status2 Register (offset = B3h) [reset = 0000 0000]

Figure 6-52. PWR_FAULT_STATUS2 Register (offset = B3h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED LDOA1_ PWRFLT VTT_ PWRFLT RESERVED RESERVED LDOA3_ PWRFLT TPS65094x 0 0 0 0 0 0 0 0 Access R R R/W R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-45. PWR_FAULT_STATUS2 Register Field Descriptions Bit Field Type Reset Description

4 LDOA1_PWRFLT R/W 0

This fields indicates that LDOA1 has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

3 VTT_PWRFLT R/W 0

This fields indicates that VTT LDO has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

0 LDOA3_PWRFLT R/W 0

This fields indicates that LDOA3 has lost regulation. 0: No Fault. 1: Power fault has occurred. The host to write 1 to clear.

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6.6.33 TEMPHOT: Temperature Hot Status Register (offset = B5h) [reset = 0000 0000]

Asserted when an internal temperature sensor detects rise of die temperature above the HOT temperature threshold (THOT). There are five temperature sensors across the die. Figure 6-53. TEMPHOT Register (offset = B5h) [reset = 0000 0000] Bit 7 6 5 4 3 2 1 0 Bit Name RESERVED RESERVED RESERVED DIE_HOT VTT_HOT TOP-RIGHT _HOT TOP-LEFT _HOT BOTTOM- RIGHT_HOT TPS65094x 0 0 0 0 0 0 0 0 Access R R R R/W R/W R/W R/W R/W LEGEND: R/W = Read/Write; R = Read only; -n = value after reset Table 6-46. TEMPHOT Register Field Descriptions Bit Field Type Reset Description

4 DIE_HOT R/W 0

Temperature of rest of die has exceeded THOT. 0: Not asserted. 1: Asserted. The host to write 1 to clear.

3 VTT_HOT R/W 0

Temperature of VTT LDO has exceeded THOT. 0: Not asserted. 1: Asserted. The host to write 1 to clear.

2 TOP-RIGHT_HOT R/W 0

Temperature of die top-right has exceeded THOT. Top-right corner of die from top view given pin 1 is in top-left corner. 0: Not asserted. 1: Asserted. The host to write 1 to clear.

1 TOP-LEFT_HOT R/W 0

Temperature of die top-left has exceeded THOT. Top-left corner of die from top view given pin 1 is in top-left corner. 0: Not asserted. 1: Asserted. The host to write 1 to clear.

0 BOTTOM-RIGHT_HOT R/W 0

Temperature of die bottom-right has exceeded THOT. Bottom-right corner of die from top view given pin 1 is in top-left corner. 0: Not asserted. 1: Asserted. The host to write 1 to clear.

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7 Application and Implementation

Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

7.1 Application Information

7.2 Typical Application

For a detailed description about application usage, refer to the TPS65094x Design Guide and to the TPS65094x Schematic Checklist, Layout Checklist, and ILIM Calculator Tool. The TPS65094x can be used in several different applications from computing, industrial interfacing, and much more. This section describes the general application information and provides a more detailed description on the TPS65094x device that powers the Intel Apollo Lake system. The functional block diagram for the device is shown in Figure 7-1, which outlines the typical external components necessary for proper device functionality.

INTERRUPT_CNTL Thermal monitoring Thermal shutdown OTP TEST CTRL I2C CTRL SLP_S0B PCH_PWROK RSMRSTB PROCHOT Internal Interrupt Events <PGND_BUCK3> BUCK3 Default: 1.05 V 3 A VREF BUCK1 Default: 1V Typical Application Usage: 0.5 V to 1.45 V (DVS) 5 A VSYS LDOA2 0.7 V to 1.5 V 600 mA Control Inputs SoC VSYS LOAD SWB2 400 mA PMICEN SLP_S3B SLP_S4B LDOLS_EN (a) SWA1_EN (b) THERMTRIPB VSYS LDO5 LDO3P3 V5ANA BUCK5V nPUC BOOT1 DRVH1 SW1 DRVL1 FBVOUT1 PGNDSNS1 ILIM1 BUCK2 Default: 0V Typical Application Usage: 0.5 V to 1.45 V (DVS) 21 A VSYS BOOT2 DRVH2 SW2 DRVL2 FBVOUT2 PGNDSNS2 ILIM2 PVIN3 LX3 FB3 BUCK5V <PGND_BUCK4> BUCK4 Default: 1.8 V 2 A PVIN4 LX4 FB4 <PGND_BUCK5> BUCK5 Default: 1.24 V 2 A PVIN5 LX5 FB5 BUCK5V BUCK6 Default: OTP Dependent 7 A VSYS BOOT6 DRVH6 SW6 DRVL6 FBVOUT6 PGNDSNS6 ILIM6 LDO5V VNN VTT_LDO ½ × VDDQ ILIM set by OTP VDDQ VTT PVINVTT VTT VTTFB DRV5V_1_6 DRV5V_2_A1 LDOA1 1.35 V to 3.3 V 0.7 V to 1.5 V 600 mA SWB2 PVINSWB1_B2 SWB1 SWA1 PVINSWA1 LDOA3 PVINLDOA2_A3 LDOA2 AGND 0.5 V to 3.3 V V1P8U (1) SWA1 VCCGI VCCRAM V1P8A V1P24A FBGND2 VSET EN VSET EN VSET EN VSET EN VSET EN VSET EN VSET EN VSET EN EN EN EN EN EN LDO5V BUCK5V EC 0.5 V to 3.3 V V1P8A GPO Dashed connections optional. Refer to Pin Attributes for connection if unused. SWB1_2 (2) (1) LPDDR3 and LPDDR4 (2) DDR3L (a) LDOA1 1RW³$OZD\\V2Q´ (b) LDOA1 ³$OZD\\V2Q´ Optional(a) Required(b) V1P8A (1) 0.5 V to 3.3 V(2) Copyright © 2016, Texas Instruments Incorporated TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Application and ImplementationCopyright © 2015–2019, Texas Instruments Incorporated Figure 7-1. Functional Block Diagram

<FBGND2> (1) PGNDSNSx VOUT VSYS LOUT ILIMx DRV5V_x_xLDO5V Control from SOC PowerPAD TM C OUT R ILIM Copyright © 2017, Texas Instruments Incorporated TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Application and Implementation Copyright © 2015–2019, Texas Instruments Incorporated

7.2.1 Design Requirements

The TPS65094x device requires decoupling capacitors on the supply pins. Follow the values for recommended capacitance on these supplies given in the Specifications section. The controllers, converter, LDOs, and some other features can be adjusted to meet specific application requirements. Section 7.2.2, Detailed Design Procedure, describes how to design and adjust the external components to achieve desired performance.

7.2.2 Detailed Design Procedure

7.2.2.1 Controller Design Procedure

Designing the controller can be divided into the following steps: 1. Design the output filter. 2. Select the FETs. 3. Select the bootstrap capacitor. 4. Select the input capacitors. 5. Set the current limits. Figure 7-2 shows a diagram of the controller. Controllers BUCK1, BUCK2, and BUCK6 require a 5-V supply and capacitors at their corresponding DRV5V_x_x pins. For most applications, the DRV5V_x_x input must come from the LDO5P0 pin to ensure uninterrupted supply voltage; a 2.2-µF, X5R, 20%, 10-V, or similar capacitor must be used for decoupling. Figure 7-2. Controller Diagram

L(MAX) OUT(MAX) IN sw (V V ) VI I 2 V f L u u u u OUT IN OUT IN sw OUT(MAX) IND V (V V )L V f I K u u u u TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Application and ImplementationCopyright © 2015–2019, Texas Instruments Incorporated

7.2.2.1.1 Selecting the Output Capacitors

TI recommends using ceramic capacitors with low ESR values to provide the lowest output voltage ripple. The output capacitor requires either an X7R or an X5R dielectric. Capacitors with Y5V or Z5U dielectrics display a wide variation in capacitance over temperature and become resistive at high frequencies. At light load currents, the controller operates in PFM mode, and the output voltage ripple is dependent on the output-capacitor value and the PFM peak inductor current. Higher output-capacitor values minimize the voltage ripple in PFM mode. To achieve specified regulation performance and low output voltage ripple, the DC-bias characteristic of ceramic capacitors must be considered. The effective capacitance of ceramic capacitors drops with increasing DC bias voltage. For the output capacitors of the BUCK controllers, TI recommends placing small ceramic capacitors between the inductor and load with many vias to the PGND plane. This solution typically provides the smallest and lowest cost solution available for DCAP2 controllers. To meet the transient specifications, the output capacitance must equal or exceed the minimum capacitance listed in the electrical characteristics table for BUCK1, BUCK2, and BUCK6 (assuming quality layout techniques are followed). See Section 5.7, Electrical Characteristics: Buck Controllers.

7.2.2.1.2 Selecting the Inductor

An inductor must be placed between the external FETs and the output capacitors. Together, the inductor and output capacitors make the double-pole that contributes to stability. In addition, the inductor is responsible for the output ripple, efficiency, and transient performance. When the inductance increases, the ripple current decreases, which typically results in an increased efficiency. However, with an increase in inductance, the transient performance decreases. Finally, the inductor selected must be rated for appropriate saturation current, core losses, and DC resistance (DCR). Equation 3 shows the calculation for the recommended inductance for the controller. where

  • VOUT is the typical output voltage.
  • VIN is the typical input voltage.
  • fSW is the typical switching frequency.
  • IOUT(MAX) is the maximum load current.
  • KIND is the ratio of ILripple to the IOUT(MAX). For this application, TI recommends that KIND is set to a value from 0.2 to 0.4. (3) With the chosen inductance value and the peak current for the inductor in steady state operation, IL(max) can be calculated using Equation 4. The rated saturation current of the inductor must be higher than the IL(MAX) current. (4) Following the previous equations, Table 7-1 lists the preferred inductor selected for the controllers.. Table 7-1. Recommended Inductors MANUFACTURER PART NUMBER VALUE SIZE HEIGHT Cyntec PIMB061H 0.47 µH 6.8 mm × 7.3 mm 1.8 mm Cyntec PIMB062D 0.22 µH 6.8 mm × 7.3 mm 2.4 mm

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7.2.2.1.3 Selecting the FETs

This controller is designed to drive two NMOS FETs. Typically, lower RDSON values are better for improving the overall efficiency of the controller. However, higher gate-charge thresholds result in lower efficiency, so the two must be balanced for optimal performance. As the RDSON for the low-side FET decreases, the minimum current limit increases; therefore, ensure selection of the appropriate values for the FETs, inductor, output capacitors, and current-limit resistor. TI's CSD87331Q3D, CSD87381P, and CSD87588N devices are recommended for the controllers, depending on the required maximum current.

7.2.2.1.4 Bootstrap Capacitor

To ensure the internal high-side gate drivers are supplied with a stable low-noise supply voltage, a capacitor must be connected between the SWx pins and the respective BOOTx pins. TI recommends placing ceramic capacitors with the value of 0.1 µF for the controllers. During testing, a 0.1-µF, size 0402, 10-V capacitor is used for the controllers. TI recommends reserving a small resistor in series with the bootstrap capacitor in case the turnon and turnoff of the FETs must be slowed to reduce voltage ringing on the switch node, which is a common practice for controller design.

7.2.2.1.5 Selecting the Input Capacitors

Due to the nature of the switching controller with a pulsating input current, a low-ESR input capacitor is required for best input-voltage filtering and also for minimizing the interference with other circuits caused by high input-voltage spikes. For the controller, a typical 2.2-µF capacitor can be used for the DRV5V_x_x pin to handle the transients on the driver. For the FET input, 10 µF of input capacitance (after derating) is recommended for most applications. To achieve the low-ESR requirement, a ceramic capacitor is recommended. However, the voltage rating and DC-bias characteristic of ceramic capacitors must be considered. For better input-voltage filtering, the input capacitor can be increased without any limit. The current-limiting resistor value must be chosen based on Equation 1. NOTE Use the correct value for the ceramic capacitor capacitance after derating to achieve the recommended input capacitance. TI recommends placing a ceramic capacitor as close as possible to the FET across the respective VSYS and PGND pins of the FETs. The preferred capacitors for the controllers are two Murata GRM21BR61E226ME44: 22 µF, 0805, 25 V, ±20%, or similar capacitors.

VIN_BUCK345_ANA VOUTLOUT Copyright © 2017, Texas Instruments Incorporated TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Application and ImplementationCopyright © 2015–2019, Texas Instruments Incorporated

7.2.2.2 Converter Design Procedure

Designing the converter has only the following two steps: 1. Design the output filter. 2. Select the input capacitors. The converter must be supplied by a 5-V source. Figure 7-3 shows a diagram of the converter. Figure 7-3. Converter Diagram

L(MAX) OUT(MAX) IN sw (V V ) VI I 2 V f L u u u u OUT IN OUT IN sw OUT(MAX) IND V (V V )L V f I K u u u u TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Application and Implementation Copyright © 2015–2019, Texas Instruments Incorporated

7.2.2.2.1 Selecting the Inductor

An inductor must be placed between the external FETs and the output capacitors. Together, the inductor and output capacitors form a double-pole in the control loop that contributes to stability. In addition, the inductor is responsible for the output ripple, efficiency, and transient performance. When the inductance increases, the ripple current decreases, which typically results in an increase in efficiency. However, with an increase in inductance, the transient performance decreases. Finally, the inductor selected must be rated for appropriate saturation current, core losses, and DCR. NOTE Internal parameters for the converters are optimized for a 0.47-µH inductor; however, it is possible to use other inductor values as long as they are chosen carefully and thoroughly tested. Equation 5 shows the calculation for the recommended inductance for the converter. where

  • VOUT is the typical output voltage.
  • VIN is the typical input voltage.
  • fSW is the typical switching frequency.
  • IOUT(MAX) is the maximum load current.
  • KIND is the ratio of ILripple to the IOUT(MAX). For this application, TI recommends that KIND is set to a value from 0.2 to 0.4. (5) With the chosen inductance value and the peak current for the inductor in steady state operation, IL(MAX) can be calculated using Equation 6. The rated saturation current of the inductor must be higher than the IL(MAX) current. (6) Following these equations, Table 7-2 lists the preferred inductor selected for the converters. Table 7-2. Recommended Inductors MANUFACTURER PART NUMBER VALUE SIZE HEIGHT Cyntec PIFE32251B-R47MS 0.47 µH 3.2 mm × 2.5 mm 1.2 mm

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7.2.2.2.2 Selecting the Output Capacitors

TI recommends using ceramic capacitors with low-ESR values are recommended to provide the lowest output voltage ripple. The output capacitor requires either an X7R or an X5R rating. Y5V and Z5U capacitors, aside from the wide variation in capacitance overtemperature, become resistive at high frequencies. At light load currents, the converter operates in PFM mode and the output voltage ripple is dependent on the output-capacitor value and the PFM peak inductor current. Higher output-capacitor values minimize the voltage ripple in PFM mode. To achieve specified regulation performance and low output voltage ripple, the DC-bias characteristic of ceramic capacitors must be considered. The effective capacitance of ceramic capacitors drops with increasing DC-bias voltage. For the output capacitors of the BUCK converters, TI recommends placing small ceramic capacitors between the inductor and load with many vias to the PGND plane. This solution typically provides the smallest and lowest-cost solution available for DCAP2 controllers. To meet the transient specifications, the output capacitance must equal or exceed the minimum capacitance listed for BUCK3, BUCK4, and BUCK5 (assuming quality layout techniques are followed).

7.2.2.2.3 Selecting the Input Capacitors

Due to the nature of the switching converter with a pulsating input current, a low-ESR input capacitor is required for best input-voltage filtering and for minimizing the interference with other circuits caused by high input-voltage spikes. For the PVINx pin, 2.5 µF of input capacitance (after derating) is required for most applications. A ceramic capacitor is recommended to achieve the low-ESR requirement. However, the voltage rating and DC-bias characteristic of ceramic capacitors must be considered. For better input- voltage filtering, the input capacitor can be increased without any limit. NOTE Use the correct value for the ceramic capacitor capacitance after derating to achieve the recommended input capacitance. The preferred capacitor for the converters is one Samsung CL05A106MP5NUNC: 10 µF, 0402, 10 V, ±20%, or similar capacitor.

7.2.2.3 LDO Design Procedure

The VTT LDO must handle the fast load transients from the DDR memory for termination. Therefore, TI recommends using ceramic capacitors to maintain a high amount of capacitance with low ESR on the VTT LDO outputs and inputs. The preferred output capacitors for the VTT LDO are the GRM188R60J226MEA0 from Murata (22 µF, 0603, 6.3 V, ±20%, or similar capacitors). The preferred input capacitor for the VTT LDO is the CL05A106MP5NUNC from Samsung (10 µF, 0402, 10 V, ±20%, or similar capacitor). The remaining LDOs must have input and output capacitors chosen based on the values in Section 5.9, Electrical Characteristics: LDOs.

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7.2.3 Application Curves

Figure 7-4. BUCK2 Controller Load Transient Figure 7-5. BUCK3 Converter Load Transient Figure 7-6. BUCK2 Controller Start-Up Figure 7-7. BUCK3 Converter Start-Up

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7.3 Specific Application for TPS650944

For the TPS650944 device, if register reset is desired when the PMICEN pin is pulled low, an alternate reset condition can be used. There are two simple options. The first option is to write 1 to the SDWN bit in the FORCESHUTDN register (see Section 6.6.17, FORCESHUTDN: Force Emergency Shutdown Control Register) to force power rails to turn off and reset all registers. The second option is to use the falling edge detection of the THERMTRIPB pin to trigger the device reset. In this case, when the PMICEN pin is pulled low, the THERMTRIPB pin on PMIC should be pulled low simultaneously, which can be done in several ways. One approach is to connect a low-voltage Schottky diode between the PMICEN and THERMTRIPB pins. Because the THERMTRIPB SoC pin is push-pull configured, a second diode is needed to prevent shorting the SoC pin to GND. An example can be seen in Figure 7-8. Both diodes must have a forward voltage below PMIC VIL (0.4 V) at the appropriate current. Another approach is to route the THERMTRIPB signal from SoC through the EC and tie PMICEN and THERMTRIPB together at the PMIC. NOTE: Not applicable if LDOA1 is not configured to "Always On" Figure 7-8. PMICEN and THERMTRIPB Connection Option for LDOA1 "Always On" Spins For the TPS650944 device, if both the PVINSWA1 and PVINSWB1_B2 pins are tied to 2.5 V, LDOA2 and LDOA3 will turn on if all VRs and load switches are enabled and have released their Power Good signals. To avoid LDOA2 and LDOA3 turning on unexpectedly, TI recommends using voltages other than 2.5 V on both SWA1 and SWB1_2.

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7.4 Do's and Don'ts

  • Connect the LDO5V output to the DRV5V_x_x inputs for situations where an external 5-V supply is not initially available or is not available the entire time PMIC is on. If the external 5-V supply is always present, then DRV5V_x_x can be directly connected to remove the V5ANA-to-LDO5P0 load switch RDSON.
  • Ensure that none of the control pins are potentially floating.
  • Include 0-Ω resistors on the DRVH and BOOT pins of controllers on prototype boards, which allows for slowing the controllers if the system is unable to handle the noise generated by the large switching or if switching voltage is too large due to layout.
  • Do not connect the V5ANA power input to a different source other than PVINx. A mismatch here causes reference circuits to regulate incorrectly.
  • Do not supply the V5ANA power input before the VSYS. Reference biasing of the internal FETs may turn on the HS FET and pass the input to the output until VSYS is biased.

8 Power Supply Recommendations

This device is designed to work with several different input voltages. The minimum voltage on the VSYS pin is 5.6 V for the device to start up; however, this is a low-power rail. The input to the FETs must be from 5.4 V to 21 V as long as the proper BOM choices are made. Input to the converters must be 5 V. For the device to output maximum power, the input power must be sufficient. For the controllers, VIN must be able to supply up to 5 A (typically), though less is acceptable with higher voltages or less usage. For the converters, PVINx must be able to supply 2 A (typically). A best practice here is to determine power usage by the system and back-calculate the necessary power input based on expected efficiency values.

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9 Layout

9.1 Layout Guidelines

For a detailed description regarding layout recommendations, refer to the TPS65094x Design Guide and to the TPS65094x Schematic Checklist, Layout Checklist, and ILIM Calculator Tool. For all switching power supplies, the layout is an important step in the design, especially at high peak currents and high switching frequencies. If the layout is not carefully done, the regulator can have stability problems and EMI issues. Therefore, use wide and short traces for the main current path and for the power ground tracks. The input capacitors, output capacitors, and inductors must be placed as close as possible to the device. Use a common-ground node for power ground and use a different, isolated node for control ground to minimize the effects of ground noise. Connect these ground nodes close to the AGND pin by one or two vias. Use of the design guide is highly encouraged in addition to the following list of other basic requirements:

  • Do not allow the AGND, PGNDSNSx, or FBGND2 to connect to the thermal pad on the top layer.
  • To ensure proper sensing based on FET RDSON, PGNDSNSx must not connect to PGND until very close to the PGND pin of the FET.
  • All inductors, input/output capacitors, and FETs for the converters and controller must be on the same board layer as the device.
  • To achieve the best regulation performance, place feedback connection points near the output capacitors and minimize the control feedback loop as much as possible.
  • Bootstrap capacitors must be placed close to the device.
  • The input and output capacitors of the internal reference regulators must be placed close to the device pins.
  • Route DRVHx and SWx as a differential pair. Ensure that there is a PGND path routed in parallel with DRVLx, which provides optimal driver loops.

9.2 Layout Example

Figure 9-1. EVM Layout Example With All Components on the Top Layer

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10 Device and Documentation Support

10.1 Device Support

10.1.1 Third-Party Products Disclaimer

TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE.

10.1.2 Development Support

See the following for development support: TPS65094x Schematic Checklist, Layout Checklist, and ILIM Calculator Tool

10.2 Documentation Support

10.2.1 Related Documentation

For related documentation see the following:

  • TPS65094x Design Guide
  • TPS65094x Evaluation Module

10.3 Receiving Notification of Documentation Updates

To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document.

10.4 Community Resources

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community The TI engineer-to-engineer (E2E) community was created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.

10.5 Trademarks

D-CAP2, D-CAP, E2E are trademarks of Texas Instruments. Ultrabook, Intel are trademarks of Intel Corporation. NXP is a trademark of NXP Semiconductors. All other trademarks are the property of their respective owners.

10.6 Electrostatic Discharge Caution

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

10.7 Glossary

TI Glossary This glossary lists and explains terms, acronyms, and definitions.

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11 Mechanical, Packaging, and Orderable Information

The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation.

Copyright © 2015–2019, Texas Instruments IncorporatedMechanical, Packaging, and Orderable Information Submit Documentation Feedback Product Folder Links: TPS65094 TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PRE_PROD Unannounced device, not in production, not available for mass market, nor on the web, samples not available. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. space (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) space (3) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. space (4) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. space (5) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device space (6) Multiple Device markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. Important Information and Disclaimer: The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

11.1 Package Option Addendum

11.1.1 Packaging Information

Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish(3) MSL Peak Temp (4) Op Temp (°C) Device Marking(5) (6) TPS650945RSKR ACTIVE VQFN RSK 64 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650945 PG1.0 TPS650945RSKT ACTIVE VQFN RSK 64 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650945 PG1.0

Reel Width (W1) REEL DIMENSIONS W Dimension designed to accommodate the component length Dimension designed to accommodate the component thickness Overall width of the carrier tape Pitch between successive cavity centers Dimension designed to accommodate the component width TAPE DIMENSIONS B0 W A0Cavity QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE Pocket Quadrants Sprocket Holes Q1 Q1Q2 Q2 Q3 Q3Q4 Q4 Reel Diameter User Direction of Feed TPS65094 www.ti.com SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 Submit Documentation Feedback Product Folder Links: TPS65094 Mechanical, Packaging, and Orderable InformationCopyright © 2015–2019, Texas Instruments Incorporated

11.1.2 Tape and Reel Information

(mm) Reel Width W1 (mm) (mm) (mm) (mm) (mm) W (mm) Pin1 Quadrant

TAPE AND REEL BOX DIMENSIONS Width (mm) W L H TPS65094 SWCS133C –SEPTEMBER 2015–REVISED FEBRUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TPS65094 Mechanical, Packaging, and Orderable Information Copyright © 2015–2019, Texas Instruments Incorporated Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS650945RSKR VQFN RSK 64 2000 367.0 367.0 38.0 TPS650945RSKT VQFN RSK 64 250.0 210.0 185.0 35.0

www.ti.com 8-Mar-2019 Addendum-Page 1 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish (6) MSL Peak Temp (3) Op Temp (°C) Device Marking (4/5) Samples TPS650940A0RSKR ACTIVE VQFN RSK 64 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650940A0 PG1.0 TPS650940A0RSKT ACTIVE VQFN RSK 64 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650940A0 PG1.0 TPS650941A0RSKR ACTIVE VQFN RSK 64 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650941A0 PG1.0 TPS650941A0RSKT ACTIVE VQFN RSK 64 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650941A0 PG1.0 TPS650942A0RSKR ACTIVE VQFN RSK 64 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650942A0 PG1.0 TPS650942A0RSKT ACTIVE VQFN RSK 64 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650942A0 PG1.0 TPS650944A0RSKR ACTIVE VQFN RSK 64 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650944A0 PG1.0 TPS650944A0RSKT ACTIVE VQFN RSK 64 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650944A0 PG1.0 TPS650945A0RSKR ACTIVE VQFN RSK 64 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650945A0 PG1.0 TPS650945A0RSKT ACTIVE VQFN RSK 64 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 T650945A0 PG1.0 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based flame retardants must also meet the <=1000ppm threshold requirement. (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.

www.ti.com 8-Mar-2019 Addendum-Page 2 (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

*All dimensions are nominal Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) (mm) (mm) (mm) (mm) W (mm) Pin1 Quadrant PACKAGE MATERIALS INFORMATION www.ti.com 6-Mar-2019 Pack Materials-Page 1

*All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS650940A0RSKR VQFN RSK 64 2000 367.0 367.0 38.0 TPS650940A0RSKT VQFN RSK 64 250 210.0 185.0 35.0 TPS650941A0RSKR VQFN RSK 64 2000 367.0 367.0 38.0 TPS650941A0RSKT VQFN RSK 64 250 210.0 185.0 35.0 TPS650942A0RSKR VQFN RSK 64 2000 367.0 367.0 38.0 TPS650942A0RSKT VQFN RSK 64 250 210.0 185.0 35.0 TPS650944A0RSKR VQFN RSK 64 2000 367.0 367.0 38.0 TPS650944A0RSKT VQFN RSK 64 250 210.0 185.0 35.0 TPS650945A0RSKR VQFN RSK 64 2000 367.0 367.0 38.0 TPS650945A0RSKT VQFN RSK 64 250 210.0 185.0 35.0 PACKAGE MATERIALS INFORMATION www.ti.com 6-Mar-2019 Pack Materials-Page 2

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