LP5910_V03 TI | Alldatasheet
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Technical content
LP5910 300-mA Low-Noise, Low-IQ LDO
1 Features
- Input voltage range: 1.3 V to 3.3 V
- Output voltage range: 0.8 V to 2.3 V
- Output current: 300 mA
- PSRR: 75 dB at 1 kHz
- Output voltage tolerance: ±2%
- Low dropout: 120 mV (typical)
- Very low I Q (enabled, no load): 12 µA
- Low output-voltage noise: 12 µV RMS
- Stable with ceramic input and output capacitors
- Thermal overload protection
- Short-circuit protection
- Reverse current protection
- Automatic output discharge for fast turnoff
2 Applications
- Mobile phones and tablets
- Digital cameras and audio devices
- Portable and battery-powered equipment
- Portable medical equipment
- Virtual reality
- RF, PLL, VCO, and clock power supplies
- IP cameras
3 Description
The LP5910 is a low-noise LDO that can supply up to 300 mA of output current. Designed to meet the requirements of RF and analog circuits, this device provides low noise, high PSRR, low quiescent current, and superior line transient and load transient response. Using new innovative design techniques the LP5910 offers class-leading noise performance without a noise bypass capacitor and with the option for remote output capacitor placement. The device contains a reverse current protection circuit that prevents a reverse current flow through the LDO to the IN pin when the input voltage is lower than the output voltage. When the Enable (EN) pin is low, and the output is in an OFF state, an automatic output discharge circuit discharges the output capacitance for fast turnoff. With its low input and low output voltage range the LP5910 is well-suited as a post DC-DC regulator (post BUCK regulator) or for single- or dual-cell applications. The device is designed to work with a 1- μF input and a 1- μF output ceramic capacitor. A separate noise bypass capacitor is not required. This device is available with fixed output voltages from 0.8 V to 2.3 V in 25-mV steps. Contact Texas Instruments Sales for specific voltage option needs. Device Information(1) PART NUMBER PACKAGE BODY SIZE LP5910 WSON (6) 2.00 mm × 2.00 mm (NOM) DSBGA (4) 0.742 mm × 0.742 mm (MAX) (1) For all available packages, see the orderable addendum at the end of the data sheet. IN OUT GND EN LP5910 VOUTVIN Enable COUTCIN Simplified Schematic www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 1 Product Folder Links: LP5910 LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 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.
11.2 Receiving Notification of Documentation Updates..19
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision E (July 2017) to Revision F (April 2021) Page
- Changed Dropout Voltage specifications for 1.5V ≤ V IN < 1.8V; added new rows in Dropout Voltage Changes from Revision D (August 2016) to Revision E (July 2017) Page
- Added new package, YKA0004-C01 associated with orderables LP5910-1.1BYKAR and LP5910-1.1BYKAT; LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 www.ti.com
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5 Pin Configuration and Functions
Figure 5-1. YKA Package, 4-Pin Ultra-Thin DSBGA, Top View EN OUT GND IN Figure 5-2. YKA Package, 4-Pin Ultra-Thin DSBGA, Bottom View OUT NC GND IN NC EN Figure 5-3. DRV Package, 6-Pin WSON With Thermal Pad, Top View Table 5-1. Pin Functions PIN I/O DESCRIPTION NAME DSBGA WSON EN B1 4 I Enable input; disables the regulator when logic low. Enables the regulator when logic high. An internal 1-MΩ pull down resistor connects this input to ground. GND B2 5 — Common ground IN A1 6 I Voltage supply input. A 1-μF capacitor must be connected at this input. NC — 2, 3 — No internal connection. Connect to ground or leave open. OUT A2 1 O Voltage output. A 1-µF low-ESR capacitor must be connected from this pin to the GND pin. Connect this output to the load circuit. Exposed Pad — Thermal Pad — The exposed thermal pad on the bottom of the package must be connected to a copper area under the package on the PCB. Connect to ground potential or leave floating. Do not connect to any potential other than the same ground potential seen at device pin 5 (GND). See the Power Dissipation section for more information. www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: LP5910
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1) (2) MIN MAX UNIT Input voltage, VIN –0.3 3.6 V Output voltage, VOUT –0.3 3.6 V Enable input voltage, VEN –0.3 3.6 V Continuous power dissipation(3) Internally limited W Junction temperature, TJ(MAX) 150 °C Storage temperature, Tstg –65 150 °C (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) All voltages are with respect to the GND pin. (3) Internal thermal shutdown circuitry protects the device from permanent damage.
6.2 ESD Ratings
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±1000 V Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±250 (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.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)(1) MIN MAX UNIT Input voltage, VIN 1.3 3.3 V Output voltage, VOUT 0.8 2.3 V Enable input voltage, VEN 0 3.3 V Output current, IOUT 0 300 mA Junction temperature, TJ (1) –40 125 °C Ambient temperature, TA (1) –40 85 °C (1) The maximum ambient temperature, (T A(MAX)) is a recommended value only and can vary depending on device power dissipation and RθJA. For reliable operation, the junction temperature (TJ) must be limited to a maximum of 125°C. Ambient temperature (TA), thermal resistance (RθJA) , VIN, VOUT, and IOUT all define TJ : TJ = TA + (RθJA × ((VIN – VOUT) × IOUT). LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 www.ti.com
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6.4 Thermal Information
THERMAL METRIC(1) LP5910 UNITYKA (DSBGA) DRV (WSON)
4 PINS 6 PINS
RθJA (2) Junction-to-ambient thermal resistance, High-K 202.8 79.2(3) °C/W RθJC(top) Junction-to-case (top) thermal resistance 3.3 110.2 °C/W RθJB Junction-to-board thermal resistance 36.0 48.7 °C/W ψJT Junction-to-top characterization parameter 0.4 5.2 °C/W ψJB Junction-to-board characterization parameter 36.0 49.1 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance n/a 18.1 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. (2) Thermal resistance value R θJA is based on the EIA/JEDEC High-K printed circuit board defined by: JESD51-7 - High Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages. (3) The PCB for the WSON/DRV package R θJA includes two (2) thermal vias under the exposed thermal pad per EIA/JEDEC JESD51-5.
6.5 Electrical Characteristics
VIN = VOUT(NOM) + 0.5 V, VEN = 1 V, IOUT = 1 mA, CIN = 1 µF, and COUT = 1 µF (unless otherwise noted)(1) (2) (3) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT GENERAL ΔVOUT Output voltage tolerance VIN = (VOUT(NOM) + 0.5 V) to 3.3 V, IOUT = 1 mA to 300 mA –2 2 %VOUT Line regulation VIN = (VOUT(NOM) + 0.5 V) to 3.3 V, IOUT = 1 mA 0.01 %/V Load regulation IOUT = 1 mA to 300 mA 0.002 %/mA ILOAD Load current See(4) 0 300 mA IQ Quiescent current(5) VEN = 1 V, IOUT = 0 mA 12 25 µAVEN = 1 V, IOUT = 300 mA 230 350 IQ(SD) Quiescent current in shutdown(5) VEN = 0.3 V, –40°C ≤ TJ ≤ 85°C 0.02 2 IRO Output reverse current(7) VOUT > VIN VOUT = 3.3 V, VIN = VEN = 0 V –20 0 µA VOUT = 3.3 V, VIN = VEN = 1.3 V 0 50 µA IG Ground current(6) IOUT = 0 mA (VOUT = 2.3 V) 15 µA VDO Dropout voltage(8) 1.3 V ≤ VOUT < 1.5 V, IOUT = 300 mA DSBGA only 200 300 mV 1.5 V ≤ VOUT <1.8V, IOUT = 300 mA DSBGA only 160 235 1.8 V ≤ VOUT ≤ 2.3 V, IOUT = 300 mA DSBGA only 120 180 1.3 V ≤ VOUT < 1.5 V, IOUT = 300 mA WSON only 245 370 1.5 V ≤ VOUT < 1.8V, IOUT = 300 mA WSON only 195 270 1.8 V ≤ VOUT ≤ 2.3 V, IOUT = 300 mA WSON only 145 220 ILIMIT Output current limit VOUT = VOUT(NOM) – 0.1 V VIN = VOUT(NOM) + 0.5 V 450 mA www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 5 Product Folder Links: LP5910
6.5 Electrical Characteristics (continued)
VIN = VOUT(NOM) + 0.5 V, VEN = 1 V, IOUT = 1 mA, CIN = 1 µF, and COUT = 1 µF (unless otherwise noted)(1) (2) (3) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PSRR Power supply rejection ratio(10) ƒ = 100 Hz, IOUT = 20 mA, VOUT ≥ 1 V 80 dB ƒ = 1 kHz, IOUT = 20 mA, VOUT ≥ 1 V 75 ƒ = 10 kHz, IOUT = 20 mA, VOUT ≥ 1 V 65 ƒ = 100 kHz, IOUT = 20 mA, VOUT ≥ 1 V 40 ƒ = 2 MHz, IOUT = 20 mA, VOUT ≥ 1 V 25 ƒ = 100 Hz, IOUT = 20 mA, 0.8 V < VOUT < 1 V 65 ƒ = 1 kHz, IOUT = 20 mA, 0.8 V < VOUT < 1 V 65 ƒ = 10 kHz, IOUT = 20 mA, 0.8 V < VOUT < 1 V 65 ƒ = 100 kHz, IOUT = 20 mA, 0.8 V < VOUT < 1 V 40 ƒ = 2 MHz, IOUT = 20 mA, 0.8 V < VOUT < 1 V 25 eN Output noise voltage(10) BW = 10 Hz to 100 kHz IOUT = 1 mA 12 µVRMS IOUT = 300 mA 12 TSD Thermal shutdown TJ rising until output is OFF 160 Thermal hysteresis TJ falling from shutdown 15 LOGIC INPUT THRESHOLDS VIL EN low threshold (Off) VIN = 1.3 V to 3.3 V 0.3 V VIH EN high threshold (On) 1 IEN EN pin current(9) VEN = 3.3 V, VIN = 3.3 V 3.3 µA VEN = 0 V, VIN = 3.3 V 0.001 TRANSIENT CHARACTERISTICS(9) ΔVOUT Line transient(10) VIN = (VOUT(NOM) + 0.5 V) to (VOUT(NOM) + 1 V) in 30 µs IOUT = 1 mA 0 1 mV VIN = (VOUT(NOM) + 1 V) to (VOUT(NOM) + 0.5 V) in 30 µs IOUT = 1 mA –1 0 Load transient(10) IOUT = 1 mA to 100 mA in 10 µs –45 mV IOUT = 100 mA to 1 mA in 10 µs 45 Overshoot on start-up(10) 5% tON Turnon time From VEN > VIH to VOUT = 95% of VOUT(NOM) 80 200 µs OUTPUT DISCHARGE RAD Output discharge pulldown resistance VEN = 0 V, VIN = 2.3 V 160 Ω (1) All voltages are with respect to the device GND pin. (2) Minimum and maximum limits are ensured through test, design, or statistical correlation over the T J range of –40°C to 125°C, unless otherwise stated. Typical values represent the most likely parametric norm at TA = 25°C, and are provided for reference purposes only. (3) C IN, COUT: Low-ESR Surface-Mount-Ceramic Capacitors (MLCCs) used in setting electrical characteristics. (4) The device maintains a stable, regulated output voltage without a load current. (5) Quiescent current is defined here as the difference in current between the input voltage source and the load at V OUT. IQ = (IIN – IOUT) (6) Ground current is defined here as the total current flowing to ground as a result of all input voltages applied to the device. (7) Output reverse current (I RO) is measured at the IN pin. (8) Dropout voltage is the voltage difference between the input and the output at which the output voltage drops to 100 mV below its nominal value. Dropout voltage is not a valid condition for output voltages less than 1.3 V as compliance with the minimum operating input voltage can not be ensured. (9) There is a 1-MΩ resistor between EN and ground on the device. (10) This specification is verified by design. LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 www.ti.com
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6.6 Typical Characteristics
VOUT = 1.8 V, VIN = VOUT + 0.5 V, VEN = VIN, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF, TJ = 25°C (unless otherwise noted) Junction Temperature (°C) Enable Threshold (V) -50 -25 0 25 50 75 100 125 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 D001 ON (VIH) OFF (VIL) VIN = 2.3 V VOUT = 1.8 V Figure 6-1. VEN Threshold vs Temperature VIN (V) VEN Thresholds (V) 1 1.5 2 2.5 3 3.5 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 D002 ON (VIH) OFF (VIL) Figure 6-2. VEN Thresholds vs VIN VIN (V) VEN Thresholds (V) 1 1.5 2 2.5 3 3.5 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 D003 ON (VIH) OFF (VIL) TJ = –40°C Figure 6-3. VEN Thresholds vs VIN VIN (V) VEN Thresholds (V) 1 1.5 2 2.5 3 3.5 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 D004 ON (VIH) OFF (VIL) TJ = 125°C Figure 6-4. VEN Thresholds vs VIN VIN (V) VOUT (V) 0 0.5 1 1.5 2 2.5 3 3.5 0.2 0.4 0.6 0.8 1.2 1.4 1.6 1.8 D005 18 k: (100 µA) 1.8 k: (1 mA) 180 : (10 mA) VEN = VIN Figure 6-5. VOUT vs VIN VIN (V) VOUT (V) 0 0.5 1 1.5 2 2.5 3 3.5 0.2 0.4 0.6 0.8 1.2 1.4 1.6 1.8 D006 180 : (10 mA) 18 : (100 mA) 6 : (300 mA) VEN = VIN Figure 6-6. VOUT vs VIN www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 7 Product Folder Links: LP5910
6.6 Typical Characteristics (continued)
VOUT = 1.8 V, VIN = VOUT + 0.5 V, VEN = VIN, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF, TJ = 25°C (unless otherwise noted) VIN (V) IQ [No Load] (µA) 0 0.5 1 1.5 2 2.5 3 3.5 D007 125°C 85°C 25°C -40°C VOUT = 0.8 V VEN = VIN No load Figure 6-7. IQ vs VIN VIN (V) IQ [No Load] (µA) 0 0.5 1 1.5 2 2.5 3 3.5 D008 125°C 85°C 25°C -40°C VOUT = 1.2 V VEN = VIN No load Figure 6-8. IQ vs VIN VIN (V) IQ [No Load] (µA) 0 0.5 1 1.5 2 2.5 3 3.5 D009 125°C 85°C 25°C -40°C VOUT = 1.8 V VEN = VIN No load Figure 6-9. IQ vs VIN VIN (V) IQ [No Load] (µA) 0 0.5 1 1.5 2 2.5 3 3.5 D010 125°C 85°C 25°C -40°C VOUT = 2.3 V VEN = VIN No load Figure 6-10. IQ vs VIN Frequency (Hz) PSRR (dB) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 10 100 1k 10k 100k 1M 10M D011 VOUT = 0.8 V VIN = 1.3 V IOUT = 20 mA Figure 6-11. PSRR vs Frequency Frequency (Hz) PSRR (dB) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 10 100 1k 10k 100k 1M 10M D012 VOUT = 1.8 V VIN = 2.3 V IOUT = 20 mA Figure 6-12. PSRR vs Frequency LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 www.ti.com
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VOUT = 1.8 V, VIN = VOUT + 0.5 V, VEN = VIN, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF, TJ = 25°C (unless otherwise noted) Frequency (Hz) PSRR (dB) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 10 100 1k 10k 100k 1M 10M D013 VOUT = 2.3 V VIN = 2.8 V IOUT = 20 mA Figure 6-13. PSRR vs Frequency Frequency (Hz) Noise (µV / Hz) 10 100 1000 10000 100000 1000000 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 D014 1 mA 300 mA VOUT = 0.8 V VIN = 1.3 V Figure 6-14. Noise Density Frequency (Hz) Noise (µV / Hz) 10 100 1000 10000 100000 1000000 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 D015 1 mA 300 mA VOUT = 2.3 V VIN = 2.8 V Figure 6-15. Noise Density Junction Temperature (°C) 'VOUT (%) -50 -25 0 25 50 75 100 125 -1.5 -1.25 -0.75 -0.5 -0.25 0.25 0.5 0.75 1.25 1.5 D016 VIN = VOUT + 0.5 V IOUT = 1 mA Figure 6-16. ΔVOUT vs Temperature IOUT (mA) IGND (µA) 0 50 100 150 200 250 300 100 125 150 175 200 225 250 D017 VIN = 3.3 V VIN = 1.3 V VOUT = 0.8 V Figure 6-17. IGND vs IOUT IOUT (mA) IGND (µA) 0 50 100 150 200 250 300 100 125 150 175 200 225 250 D018 VIN = 3.3 V VIN = 2.3 V VOUT = 1.8 V Figure 6-18. IGND vs IOUT www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 9 Product Folder Links: LP5910
VOUT = 1.8 V, VIN = VOUT + 0.5 V, VEN = VIN, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF, TJ = 25°C (unless otherwise noted) IOUT (mA) IGND (µA) 0 50 100 150 200 250 300 100 125 150 175 200 225 250 D019 VIN = 3.3 V VIN = 2.8 V VOUT = 2.3 V Figure 6-19. IGND vs IOUT IOUT (mA) VDO (mV) 0 50 100 150 200 250 300 100 150 200 250 300 D020 VOUT = 1.2 V VOUT = 1.8 V VOUT = 2.3 V Figure 6-20. Dropout Voltage vs IOUT Time (µs) VIN (V) VOUT (V) -25 0 25 50 75 100 125 150 0 0 0.5 0.5 1 1 1.5 1.5 2 2 2.5 2.5 D021 VIN VOUT VEN = VIN VOUT = 1.8 V COUT = 1 µF Figure 6-21. Turnon Time Time (µs) IOUT (mA) 'VOUT (mV) -20 -10 0 10 20 30 40 50 60 70 80 0 -12 20 -8 40 -4 60 0 80 4 100 8 120 12 D022 IOUT 'VOUT VIN = 2.3 V VOUT = 1.8 V COUT = 1 µF IOUT = 1 mA to 100 mA tRISE = 10 µs Figure 6-22. Load Transient Response Time (µs) IOUT (mA) 'VOUT (mV) -20 -10 0 10 20 30 40 50 60 70 80 0 -12 20 -8 40 -4 60 0 80 4 100 8 120 12 D023 IOUT 'VOUT VIN = 2.3 V VOUT = 1.8 V COUT = 1 µF IOUT = 100 mA to 1 mA tFALL = 10 µs Figure 6-23. Load Transient Response Time (Ps) VIN (V) 'VOUT (mV) 0 50 100 150 200 250 300 350 400 450 500 0.0 -12 0.5 -8 1.0 -4 1.5 0 2.0 4 2.5 8 3.0 12 D024 VIN (V) 'VOUT (mV) ΔVIN = 0.5 V VOUT = 1.8 V COUT = 1 µF tRISE = tFALL = 30 µs IOUT = 1 mA Figure 6-24. Line Transient Response LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 www.ti.com
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7 Detailed Description
7.1 Overview
The LP5910 is a linear regulator capable of supplying 300-mA output current. Designed to meet the requirements of RF and analog circuits, the LP5910 device provides low noise, high PSRR, low quiescent current, and low line/load transient response figures. Using new innovative design techniques the LP5910 offers class-leading noise performance without a noise bypass capacitor and the option for remote output capacitor placement.
7.2 Functional Block Diagram
7.3 Feature Description
7.3.1 No-Load Stability
The LP5910 remains stable and in regulation with no external load.
7.3.2 Thermal Overload Protection
The LP5910 contains a thermal shutdown protection circuit to turn off the output current when excessive heat is dissipated in the LDO. Thermal shutdown occurs when the thermal junction temperature (T J) of the main pass-FET exceeds 160°C (typical). Thermal shutdown hysteresis assures that the LDO again resets (turns on) when the temperature falls to 145°C (typical).
7.3.3 Short-Circuit Protection
The LP5910 contains internal current limit which reduces output current to a safe value if the output is overloaded or shorted. Depending upon the value of V IN, thermal limiting may also become active as the average power dissipated causes the die temperature to increase to the limit value (about 160°C). The hysteresis of the thermal shutdown circuitry can result in a cyclic behavior on the output as the die temperature heats and cools.
7.3.4 Output Automatic Discharge
The LP5910 output employs an internal 160-Ω (typical) pulldown resistance to discharge the output when the EN pin is low, and the device is disabled.
7.3.5 Reverse Current Protection
The device contains a reverse current protection circuit that prevents a backward current flowing through the LDO from the OUT pin to the IN pin. www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 11 Product Folder Links: LP5910
7.4 Device Functional Modes
7.4.1 Enable (EN)
The LP5910 may be switched to the ON or OFF state by logic input at the EN pin. A logic-high voltage on the EN pin turns the device to the ON state. A logic-low voltage on the EN pin turns the device to the OFF state. If the application does not require the shutdown feature, the EN pin must be tied to VIN to keep the regulator output permanently in the ON state when power is applied To ensure proper operation, the signal source used to drive the EN input must be able to swing above and below the specified turnon or turnoff voltage thresholds listed in the Electrical Characteristics section under VIL and VIH. A 1-M Ω pulldown resistor ties the EN input to ground. If the EN pin is left open, the internal 1-M Ω pulldown resistor ensures that the device is turned into an OFF state by default. When the EN pin is low, and the output is in an OFF state, the output activates an internal pulldown resistance to discharge the output capacitance for fast turnoff. LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 www.ti.com
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8 Applications 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, as well as validating and testing their design implementation to confirm system functionality.
8.1 Application Information
The LP5910 is designed to meet the requirements of RF and analog circuits, by providing low noise, high PSRR, low quiescent current, and low line or load transient response figures. The device offers excellent noise performance without the need for a noise bypass capacitor and is stable with input and output capacitors with a value of 1 µF. The LP5910 delivers this performance in an industry-standard DSBGA package which, for this device, is specified with a TJ of –40°C to +125°C.
8.2 Typical Application
Figure 8-1 shows the typical application circuit for the LP5910. Input and output capacitances may need to be increased above 1-µF minimum for some applications. IN OUT GND EN LP5910 VOUTVIN Enable 1 µF1 µF Figure 8-1. LP5910 Typical Application
8.2.1 Design Requirements
For typical LP5910 applications, use the parameters listed in Table 8-1. Table 8-1. Design Parameters DESIGN PARAMETER EXAMPLE VALUE Input voltage 1.3 V to 3.3 V Output voltage 0.8 V to 2.3 V Output current 300 mA Output capacitor range 1 µF to 10 µF
8.2.2 Detailed Design Procedure
8.2.2.1 External Capacitors
Like most low-dropout regulators, the LP5910 requires external capacitors for regulator stability. The device is specifically designed for portable applications requiring minimum board space and smallest components. These capacitors must be correctly selected for good performance.
8.2.2.2 Input Capacitor
An input capacitor is required for stability. It is recommended that a 1-µF capacitor be connected from the LP5910 IN pin to ground. (This capacitance value may be increased without limit.) The input capacitor must be www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 13 Product Folder Links: LP5910
located a distance of not more than 1 cm from the IN pin and returned to a clean analog ground. Any good quality ceramic, tantalum, or film capacitor may be used at the input. Note Tantalum capacitors can suffer catastrophic failures due to surge current when connected to a low- impedance source of power (like a battery or a very large capacitor). If a tantalum capacitor is used at the input, it must be guaranteed by the manufacturer to have a surge current rating sufficient for the application. There are no requirements for the equivalent series resistance (ESR) on the input capacitor, but tolerance and temperature coefficient must be considered when selecting the capacitor to ensure the capacitance remains 1 µF ±30% over the entire operating temperature range.
8.2.2.3 Output Capacitor
For capacitance values in the range of 1 µF to 4.7 µF, ceramic capacitors are the smallest, least expensive and have the lowest ESR values, thus making them best for eliminating high frequency noise. The ESR of a typical 1-µF ceramic capacitor is in the range of 20 m Ω to 40 m Ω, which easily meets the ESR requirement for stability for the LP5910. The temperature performance of ceramic capacitors varies by type. Most large value ceramic capacitors ( ≥ 2.2 µF) are manufactured with Z5U or Y5V temperature characteristics, which results in the capacitance dropping by more than 50% as the temperature goes from 25°C to 85°C. A better choice for temperature coefficient in a ceramic capacitor is X7R. This type of capacitor is the most stable and holds the capacitance within ±15% over the temperature range. Tantalum capacitors are less desirable than ceramic for use as output capacitors because they are more expensive when comparing equivalent capacitance and voltage ratings in the 1-µF to 4.7-µF range.
8.2.2.4 Capacitor Characteristics
The LP5910 is designed to work with ceramic capacitors on the input and output to take advantage of the benefits they offer. For capacitance values in the range of 1 µF to 10 µF, ceramic capacitors are the smallest, least expensive and have the lowest ESR values, thus making them best for eliminating high frequency noise. The ESR of a typical 1-µF ceramic capacitor is in the range of 20 m Ω to 40 m Ω, which easily meets the ESR requirement for stability for the LP5910. A better choice for temperature coefficient in a ceramic capacitor is X7R. This type of capacitor is the most stable and holds the capacitance within ±15% over the temperature range. Tantalum capacitors are less desirable than ceramic for use as output capacitors because they are more expensive when comparing equivalent capacitance and voltage ratings in the 1-µF to 10-µF range. Another important consideration is that tantalum capacitors have higher ESR values than equivalent size ceramics. This means that while it may be possible to find a tantalum capacitor with an ESR value within the stable range, it would have to be larger in capacitance (which means bigger and more costly) than a ceramic capacitor with the same ESR value. Also, the ESR of a typical tantalum increases about 2:1 as the temperature goes from 25°C down to –40°C, so some guard band must be allowed.
8.2.2.5 Remote Capacitor Operation
The LP5910 requires at least a 1-µF capacitor at the OUT pin, but there is no strict requirements about the location of the capacitor in regards to the pin. In practical designs the output capacitor may be located up to 10 cm away from the LDO. This means that there is no need to have a special capacitor close to the OUT pin if there is already respective capacitors in the system (like a capacitor at the input of supplied part). The remote capacitor feature helps user to minimize the number of capacitors in the system. As a good design practice, keep the wiring parasitic inductance at a minimum, using as wide as possible traces from the LDO output to the capacitors, keeping the LDO output trace layer as close as possible to ground layer and avoiding vias on the path. If there is a need to use vias, implement as many vias as possible between the connection layers. It is recommended to keep parasitic wiring inductance less than 35 nH. For the applications with fast load transients, an input capacitor is recommended, equal to or larger to the sum of the capacitance at the output node, for the best load-transient performance. LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 www.ti.com
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8.2.2.6 No-Load Stability
The LP5910 remains stable, and in regulation, with no external load.
8.2.2.7 Enable Control
The LP5910 may be switched to an ON or OFF state by a logic input at the EN pin. A voltage on this pin greater than VIH turns the device on, while a voltage less than VIL turns the device off. When the EN pin is low, the regulator output is off and the device typically consumes less than 1 µA. Additionally, an output pulldown circuit is activated which ensures that any charge stored on COUT is discharged to ground. If the application does not require the use of the shutdown feature, the EN pin can be tied directly to the IN pin to keep the regulator output permanently on. An internal 1-MΩ pulldown resistor ties the EN input to ground, ensuring that the device remains off if the EN pin is left open circuit. To ensure proper operation, the signal source used to drive the EN pin must be able to swing above and below the specified turn-on/off voltage thresholds listed in the Electrical Characteristics under VIL and VIH. Table 8-2. Recommended Output Capacitor Specification PARAMETER TEST CONDITIONS MIN NOM MAX UNIT Output capacitor, COUT Capacitance for stability 0.7 1 10 µF ESR 5 500 mΩ
8.2.2.8 Power Dissipation
Knowing the device power dissipation and proper sizing of the thermal plane connected to the tab or pad is critical to ensuring reliable operation. Device power dissipation depends on input voltage, output voltage, and load conditions and can be calculated with Equation 1. PD(MAX) = (VIN(MAX) – VOUT) × IOUT(MAX) (1) Power dissipation can be minimized, and greater efficiency can be achieved, by using the lowest available voltage drop option that would still be greater than the dropout voltage (V DO). However, keep in mind that higher voltage drops result in better dynamic (that is, PSRR and transient) performance. On the WSON (DRV) package, the primary conduction path for heat is through the exposed power pad to the PCB. To ensure the device does not overheat, connect the exposed pad, through thermal vias, to an internal ground plane with an appropriate amount of copper PCB area . On the DSBGA (YKA) package, the primary conduction path for heat is through the four bumps to the PCB. The maximum allowable junction temperature (T J(MAX)) determines maximum power dissipation allowed (PD(MAX)) for the device package. Power dissipation and junction temperature are most often related by the junction-to-ambient thermal resistance (RθJA) of the combined PCB and device package and the temperature of the ambient air (T A), according to Equation 2 or Equation 3: TJ(MAX) = TA(MAX) + (RθJA × PD(MAX)) (2) PD(MAX) = (TJ(MAX) - TA(MAX)) / RθJA (3) Unfortunately, this R θJA is highly dependent on the heat-spreading capability of the particular PCB design, and therefore varies according to the total copper area, copper weight, and location of the planes. The R θJA recorded in Thermal Information is determined by the specific EIA/JEDEC JESD51-7 standard for PCB and copper-spreading area, and is to be used only as a relative measure of package thermal performance. For a well-designed thermal layout, R θJA is actually the sum of the package junction-to-case (bottom) thermal resistance (RθJCbot) plus the thermal resistance contribution by the PCB copper area acting as a heat sink. www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 15 Product Folder Links: LP5910
8.2.2.9 Estimating Junction Temperature
The EIA/JEDEC standard recommends the use of psi ( Ψ) thermal characteristics to estimate the junction temperatures of surface mount devices on a typical PCB board application. These characteristics are not true thermal resistance values, but rather package specific thermal characteristics that offer practical and relative means of estimating junction temperatures. These psi metrics are determined to be significantly independent of copper-spreading area. The key thermal characteristics ( ΨJT and ΨJB) are given in Thermal Information and are used in accordance with Equation 4 or Equation 5. TJ(MAX) = TTOP + (ΨJT × PD(MAX)) (4) where
- P D(MAX) is explained in Equation 1.
- T TOP is the temperature measured at the center-top of the device package. TJ(MAX) = TBOARD + (ΨJB × PD(MAX)) (5) where
- P D(MAX) is explained in Equation 1.
- T BOARD is the PCB surface temperature measured 1-mm from the device package and centered on the package edge. For more information about the thermal characteristics ΨJT and ΨJB, see the Semiconductor and IC Package Thermal Metrics application report, available for download at www.ti.com. For more information about measuring TTOP and TBOARD, see the Using New Thermal Metrics application report, available for download at www.ti.com. For more information about the EIA/JEDEC JESD51 PCB used for validating R θJA, see the Thermal Characteristics of Linear and Logic Packages Using JEDEC PCB Designs application report , available for download at www.ti.com.
8.2.3 Application Curves
Time (µs) VIN (V) VOUT (V) -25 0 25 50 75 100 125 150 0 0 0.5 0.5 1 1 1.5 1.5 2 2 2.5 2.5 D021 VIN VOUT VEN = VIN VOUT = 1.8 V COUT = 1 µF Figure 8-2. Turnon Time Time (µs) IOUT (mA) 'VOUT (mV) -20 -10 0 10 20 30 40 50 60 70 80 0 -12 20 -8 40 -4 60 0 80 4 100 8 120 12 D022 IOUT 'VOUT VIN = 2.3 V VOUT = 1.8 V COUT = 1 µF IOUT = 1 mA to 100 mA tRISE = 10 µs Figure 8-3. Load Transient Response LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 www.ti.com
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9 Power Supply Recommendations
This device is designed to operate from an input supply voltage range of 1.3 V to 3.3 V. The input supply must be well regulated and free of spurious noise. To ensure that the LP5910 output voltage is well regulated and dynamic performance is optimum, the input supply must be at least VOUT + 0.5 V. www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 17 Product Folder Links: LP5910
10 Layout
10.1 Layout Guidelines
The dynamic performance of the LP5910 is dependant on the layout of the PCB. PCB layout practices that are adequate for typical LDOs may degrade the PSRR, noise, or transient performance of the LP5910. Best performance is achieved by placing C IN and COUT on the same side of the PCB as the LP5910 device, and as close as is practical to the package. The ground connections for C IN and COUT must be back to the LP5910 GND pin using as wide and as short of a copper trace as is practical. Avoid connections using long trace lengths, narrow trace widths, and/or connections through vias. These add parasitic inductances and resistance that results in inferior performance especially during transient conditions.
10.1.1 DSBGA Mounting
The DSBGA package requires specific mounting techniques, which are detailed in the DSBGA Wafer Level Chip Scale Package application note . For best results during assembly, alignment ordinals on the PC board may be used to facilitate placement of the DSBGA device.
10.1.2 DSBGA Light Sensitivity
Exposing the DSBGA device to direct light may cause incorrect operation of the device. High intensity light sources such as halogen lamps can affect electrical performance if they are situated in close proximity to the device. The wavelengths that have the most detrimental effect are reds and infra-reds, which means that the fluorescent lighting used inside most buildings has little effect on performance.
10.2 Layout Examples
Figure 10-1. LP5910 Typical DSBGA Layout OUT NC GND IN NC EN Thermal PadCOUT CIN Figure 10-2. LP5910 Typical WSON Layout LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 www.ti.com
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11 Device and Documentation Support
11.1 Documentation Support
11.1.1 Related Documentation
For related documentation, see the following:
- Texas Instruments, AN-1112 DSBGA Wafer Level Chip Scale Package application note
- Texas Instruments, Semiconductor and IC Package Thermal Metrics application report
- Texas Instruments, Using New Thermal Metrics application report
- Texas Instruments, Thermal Characteristics of Linear and Logic Packages Using JEDEC PCB Designs application report
11.2 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. Click on Subscribe to updates 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.
11.3 Support Resources
TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight from the experts. Search existing answers or ask your own question to get the quick design help you need. Linked content is 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.
11.4 Trademarks
TI E2E™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners.
11.5 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.
11.6 Glossary
TI Glossary This glossary lists and explains terms, acronyms, and definitions. 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. www.ti.com LP5910 SNVSA91F – SEPTEMBER 2015 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 19 Product Folder Links: LP5910
www.ti.com 7-May-2021 Addendum-Page 1 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead finish/ Ball material (6) MSL Peak Temp (3) Op Temp (°C) Device Marking (4/5) Samples LP5910-0.9YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 D LP5910-1.0DRVR ACTIVE WSON DRV 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 59A LP5910-1.0YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 A LP5910-1.1BYKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 T LP5910-1.1BYKAT ACTIVE DSBGA YKA 4 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 T LP5910-1.1YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 E LP5910-1.2PYCPR PREVIEW DSBGA YCP 4 3000 Non-RoHS & Non-Green Call TI Call TI -40 to 125 LP5910-1.2YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 B LP5910-1.725YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 N LP5910-1.825YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 O LP5910-1.825YKAT ACTIVE DSBGA YKA 4 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 O LP5910-1.8DRVR ACTIVE WSON DRV 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 59C LP5910-1.8DRVT ACTIVE WSON DRV 6 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 59C LP5910-1.8YKAR ACTIVE DSBGA YKA 4 3000 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 C LP5910-1.8YKAT ACTIVE DSBGA YKA 4 250 RoHS & Green SNAGCU Level-1-260C-UNLIM -40 to 125 C PLP5910-1.2PYCPR ACTIVE DSBGA YCP 4 3000 Non-RoHS & Non-Green Call TI Call TI -40 to 125 (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.
www.ti.com 7-May-2021 Addendum-Page 2 (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. (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 finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material 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 8-May-2021 Pack Materials-Page 1
*All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LP5910-0.9YKAR DSBGA YKA 4 3000 182.0 182.0 20.0 LP5910-1.0DRVR WSON DRV 6 3000 182.0 182.0 20.0 LP5910-1.0YKAR DSBGA YKA 4 3000 182.0 182.0 20.0 LP5910-1.1BYKAR DSBGA YKA 4 3000 182.0 182.0 20.0 LP5910-1.1BYKAT DSBGA YKA 4 250 182.0 182.0 20.0 LP5910-1.1YKAR DSBGA YKA 4 3000 182.0 182.0 20.0 LP5910-1.2YKAR DSBGA YKA 4 3000 182.0 182.0 20.0 LP5910-1.725YKAR DSBGA YKA 4 3000 182.0 182.0 20.0 LP5910-1.825YKAR DSBGA YKA 4 3000 182.0 182.0 20.0 LP5910-1.825YKAT DSBGA YKA 4 250 182.0 182.0 20.0 LP5910-1.8DRVR WSON DRV 6 3000 182.0 182.0 20.0 LP5910-1.8DRVT WSON DRV 6 250 182.0 182.0 20.0 LP5910-1.8YKAR DSBGA YKA 4 3000 182.0 182.0 20.0 LP5910-1.8YKAT DSBGA YKA 4 250 182.0 182.0 20.0 PACKAGE MATERIALS INFORMATION www.ti.com 8-May-2021 Pack Materials-Page 2
Images above are just a representation of the package family, actual package may vary. Refer to the product data sheet for package details. DRV 6 WSON - 0.8 mm max height PLASTIC SMALL OUTLINE - NO LEAD 4206925/F
www.ti.com PACKAGE OUTLINE C 6X 0.35 0.25 1.6 0.1 6X 0.3 0.2 1.3 1 0.1 4X 0.65 0.8 0.7 0.05 0.00 B 2.1 1.9 A 2.1 1.9 (0.2) TYP WSON - 0.8 mm max heightDRV0006A PLASTIC SMALL OUTLINE - NO LEAD 4222173/B 04/2018 PIN 1 INDEX AREA SEATING PLANE 0.08 C 3 4 (OPTIONAL) PIN 1 ID
0.1 C A B
0.05 C THERMAL PAD EXPOSED NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. The package thermal pad must be soldered to the printed circuit board for thermal and mechanical performance. SCALE 5.500
www.ti.com EXAMPLE BOARD LAYOUT
0.07 MIN
0.07 MAX
(1) 4X (0.65) (1.95) 6X (0.3) 6X (0.45) (1.6) (R0.05) TYP ( 0.2) VIA TYP (1.1) WSON - 0.8 mm max heightDRV0006A PLASTIC SMALL OUTLINE - NO LEAD 4222173/B 04/2018 SYMM 3 4 SYMM LAND PATTERN EXAMPLE SCALE:25X NOTES: (continued) 4. This package is designed to be soldered to a thermal pad on the board. For more information, see Texas Instruments literature number SLUA271 (www.ti.com/lit/slua271). 5. Vias are optional depending on application, refer to device data sheet. If some or all are implemented, recommended via locations are shown. SOLDER MASK OPENING SOLDER MASK METAL UNDER SOLDER MASK DEFINED METALSOLDER MASK OPENING SOLDER MASK DETAILS NON SOLDER MASK DEFINED (PREFERRED)
www.ti.com EXAMPLE STENCIL DESIGN 6X (0.3) 6X (0.45) 4X (0.65) (0.7) (1) (1.95) (R0.05) TYP (0.45) WSON - 0.8 mm max heightDRV0006A PLASTIC SMALL OUTLINE - NO LEAD 4222173/B 04/2018 NOTES: (continued) 6. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. SOLDER PASTE EXAMPLE BASED ON 0.125 mm THICK STENCIL EXPOSED PAD #7 88% PRINTED SOLDER COVERAGE BY AREA UNDER PACKAGE SCALE:30X SYMM 3 4 SYMM METAL
www.ti.com PACKAGE OUTLINE C0.4 MAX 0.18 0.13
0.35 TYP
4X 0.25 0.15 0.35 TYP B E A D 4221909/B 08/2018 DSBGA - 0.4 mm max heightYKA0004 DIE SIZE BALL GRID ARRAY NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. BALL A1 CORNER SEATING PLANE BALL TYP 0.05 C 1 2
0.015 C A B
B A SCALE 14.000 D: Max = E: Max = 0.742 mm, Min = 0.742 mm, Min = 0.682 mm 0.682 mm
www.ti.com EXAMPLE BOARD LAYOUT 4X ( 0.2) (0.35) TYP (0.35) TYP ( 0.2) METAL 0.0325 MAX ( 0.2) SOLDER MASK OPENING
0.0325 MIN
DSBGA - 0.4 mm max heightYKA0004 DIE SIZE BALL GRID ARRAY NOTES: (continued) 3. Final dimensions may vary due to manufacturing tolerance considerations and also routing constraints. For more information, see Texas Instruments literature number SNVA009 (www.ti.com/lit/snva009). SYMM SYMM LAND PATTERN EXAMPLE EXPOSED METAL SHOWN SCALE:60X 1 2 A B NON-SOLDER MASK DEFINED SOLDER MASK DETAILS NOT TO SCALE SOLDER MASK OPENING EXPOSED METAL SOLDER MASK DEFINED (PREFERRED) METAL UNDER SOLDER MASK EXPOSED METAL
www.ti.com EXAMPLE STENCIL DESIGN (0.35) TYP (0.35) TYP 4X ( 0.21) (R0.05) TYP METAL TYP 4221909/B 08/2018 DSBGA - 0.4 mm max heightYKA0004 DIE SIZE BALL GRID ARRAY NOTES: (continued) 4. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. SYMM SYMM SOLDER PASTE EXAMPLE BASED ON 0.075 mm - 0.1 mm THICK STENCIL SCALE:60X 1 2 A B
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