TPP36106 3PEAK | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 24

Technical content

Features

  • Wide Supply Voltage: 4.5 V to 36 V
  • Internal Power FET：180 mΩ and 90 mΩ
  • 0.6-V Reference Voltage with 2% Accuracy
  • High-Efficiency Synchronous-Mode Operation
  • Fixed Switching Frequency – 500 kHz (TPP361060/2) – 1 MHz (TPP361064/5) – 2.2 MHz (TPP361061/3)
  • Low 2-μA Shutdown, 70-μA Quiescent Current
  • Internal Light Load Power-Save Mode for High Efficiency at Light Load (TPP361060/1/4)
  • Forced-PWM Mode for Low Output Ripple (TPP361062/3/5)
  • Internal 2-ms Soft-Start Timer
  • Internal Loop Compensation
  • Over-Current Protection with Hiccup Mode
  • Output Over-Voltage Protection
  • Thermal Shutdown
  • Small Outline Package TSOT23-6
  • −40°C to 125°C Operation Ambient Temperature Range

Applications

  • 12-V, 24-V Distributed Power Supply
  • Industrial Applications
  • General Purpose

Description

The TPP36106x series is a simple, easy-to-use, 1- A output, synchronous, step-down, and switch-mode converter with internal power MOSFETs. The TPP36106x integrates low-R DS(ON) power transistors in the TSOT23-6 package with internal soft-start, compensation, and protection features. The TPP36106x offers a very compact solution to achieve a 1-A continuous output current over a wide input supply range, with excellent load and line regulation. The TPP36106 has different versions of switching frequency at 500-kHz, 1-MHz, and 2.2-MHz, and also supports light load PSM to save quiescent current and forced-PWM mode to maintain fixed switching frequency. The device is available in the 6-pin TSOT23-6 package with the support of a wide operation ambient temperature range from −40 °C to 125 °C. Typical Application Circuit VIN EN VFB SW VBSTGND 5 3 VOUT C OUT VIN C IN EN C BST VOUT TPP36106 TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 1 / 24 EA20230202A2

36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 2 / 24 EA20230202A2

Revision History

2022-10-31 Rev P.0 Initial draft 2023-02-13 Rev A.0 Initial release 2023-05-12 Rev A.1 Updated electrical table, description and typical applications. 2024-04-01 Rev A.2 Updated recommended operating conditions and maximum duty cycle. TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 3 / 24 EA20230202A2

Table 1. Pin Functions: TPP36106 1 VBST O High-side MOSFET gate supply pin. Connect 0.1-µF between VBST and SW pins. 3 VFB O Voltage feedback pin. Connect to output voltage with a feedback resistor divider. 4 EN I Enable input. Active high. Internally weak pulled up. 6 SW O Switching node, connect to inductor, boot capacitor.

Absolute Maximum Ratings (1) Symbol Parameter Min Max Unit VIN Supply Voltage −0.3 42 V SW Switching Node Voltage −0.3 VIN + 0.3 V Switching Node Voltage (50 ns) −3 42 V Switching Node Voltage (20 ns) −5 42 V VBST-SW Bootstrap Voltage −0.3 5.5 V FB Feedback Voltage −0.3 5.5 V EN Enable Input −0.3 42 V TJ Maximum Junction Temperature 150 °C TA Operating Temperature Range −40 125 °C TSTG Storage Temperature Range −65 150 °C TL Lead Temperature (Soldering 10 sec) 260 °C (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. (2) The inputs are protected by ESD protection diodes to each power supply. If the input extends more than 300 mV beyond the power supply, the input current should be limited to less than 10 mA. (3) A heat sink may be required to keep the junction temperature below the absolute maximum. This depends on the power supply voltage and how many amplifiers are shorted. Thermal resistance varies with the amount of PC board metal connected to the package. The specified values are for short traces connected to the leads. ESD, Electrostatic Discharge Protection Symbol Parameter Condition Minimum Level Unit HBM Human Body Model ESD ANSI/ESDA/JEDEC JS-001 (1) 2 kV CDM Charged Device Model ESD ANSI/ESDA/JEDEC JS-002 (2) 1.5 kV (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. Recommended Operating Conditions Parameter Min Max Unit VIN Supply Input Voltage Range 4.5 36 V EN EN Input Voltage Range 0 36 V FB FB Input Voltage Range 0 5.5 V BOOT – SW BOOT Input Voltage Range 0 5.5 V SW SW Input Voltage Range 0 VIN V TJ Operating Junction Temperature –40 150 °C TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 5 / 24 EA20230202A2

Package Type θJA θJC Unit TSOT23-6 100 67 °C/W TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 6 / 24 EA20230202A2

Electrical Characteristics

All test conditions: VIN = 12 V, TA = −40°C to +125°C, unless otherwise noted. Parameter Conditions Min Typ Max Unit Power Supply VIN Supply Voltage Range 4.5 36 V IQ Operating Supply Current Non-switching, EN = 5 V, VFB = 1 V 70 μA IQSD Shut Down Supply Current EN = GND 2 μA VUVLO_rising UVLO Rising Threshold 3.9 4.3 4.5 V VUVLO_falling UVLO Falling Threshold 3.7 3.9 4.1 V Enable VENH EN Input Rising Threshold 1.15 1.28 1.35 V VENL EN Input Falling Threshold 1 1.17 1.2 V IEN_L EN current, EN = L(1) VEN = 0.9 V 0.65 1.04 1.5 μA IEN_H EN current, EN = H VEN = 1.5 V 3.6 4.3 5.2 μA IEN_HYS EN hysteresis current VEN = 1.5 V 3.3 μA Feedback and Power Stage VFB VFB Feedback Voltage 588 600 612 mV Rds(on)_HSD High-side FET On-Resistance ISW = 1 A 180 mΩ Rds(on)_LSD Low-side FET On-Resistance ISW = 1 A 116.2 mΩ fSW Switching Frequency TPP361060/2 390 500 590 kHz TPP361061/3 1.76 2.2 2.64 MHz TPP361064/5 0.8 1 1.2 MHz DMAX Maximum duty cycle 93 % tss Soft-Start Time 2 ms tss_done Soft Start Transition Time 14 18 24 ms Iskip Pulse-Skip Mode Peak Inductor Current Threshold VIN = 12 V, VOUT = 5 V, L = 15 μH 300 mA Current Limit ILimit_HS High-side Current Limit Inductor peak current 1.2 1.5 1.8 A ILimit_LS Low-side Current Limit Inductor valley current 0.9 1.2 1.5 A ILimit_LS_neg Negative Low-side Current Limit 0.9 A Diagnostics and Protection VFB_UVP_rising FB Hiccup Protection Rising Ratio 33 % VFB_UVP_falling FB Hiccup Protection Falling Ratio 40 % VFB_OVP_rising FB Over-Voltage Protection Rising Ratio 108 % TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 7 / 24 EA20230202A2

Parameter Conditions Min Typ Max Unit VFB_OVP_falling FB Over-Voltage Protection Falling Ratio 107 % tHIC_wait Hiccup Protection Wait Time 128 Cycles tHIC_restart Hiccup Protection Restart Time 60 ms Thermal Shutdown TSD Thermal Shut-down Temperature 160 °C TSD_hys Thermal Hysteresis 10 °C (1) Guaranteed by design. TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 8 / 24 EA20230202A2

Figure 1. Quiescent Current vs. Supply Voltage Figure 2. Reference Voltage vs. Temperature Figure 3. EN Threshold vs. Junction Temperature

280 LowsideHighside

Figure 4. On-Resistance vs Temperature Figure 5. Switching Frequency vs. Temperature

2 HighsideLowsideLowside Negative

Figure 6. Current Limit vs. Temperature

Figure 7. Shutdown Current vs Junction Temperature

5 RisingFalling

Figure 8. UVLO Threshold vs Temperature Figure 9. Efficiency vs. Output Current Figure 10. Efficiency vs. Output Current Figure 11. Load Regulation Figure 12. Line Regulation

without extra compensation circuitry. Figure 24. Functional Block Diagram

optimizing ripple performance. With integrated low Rds(on), the device can achieve high efficiency in a small physical footprint. performance in 1-MHz and 2.2-MHz scenarios, especially at high-temperature conditions. decay of voltage takes a longer time and lowers the switching frequency accordingly. negative current limit of low-side FET is enabled. EN rises above the threshold and turns hysteresis current IEN_SYSon, the total current is IEN_H. Figure 25. EN Block Diagram

Soft-Start with Pre-Biased Capability Once EN becomes high, the device ramps up its internal reference voltage with a fixed 2-ms rise time. When the output capacitor is pre-charged, the soft-start ramp will only enable output switching after internal reference ramps above the FB voltage. Over Current Protection The device has a cycle-by-cycle current limit. During the OFF state, once the over current is detected at the ripple current valley by measuring the low-side FET current, the device keeps the low-side FET OFF until the current falls below the over-current protection (OCP) threshold. The device has a negative current and can block reverse current when the reverse inductor current is higher than the threshold. Output Undervoltage Hiccup Protection When the device output voltage falls below the hiccup voltage threshold, the device gets into hiccup mode by turning off the device and restarts after the hiccup timer (typically 60 ms) expires. To support large output capacitance as large as 1 mF, the device has an extended soft start transition timer. Upon power up, the device gets into soft-start and prevents the device from output under voltage hiccup protection mode until soft start transition time tss_done is over. Undervoltage Lockout (UVLO) Protection Once the input voltage falls below the UVLO threshold, the device is shut off. Once the device recovers above the UVLO threshold, the device returns to normal operation. Over-Temperature Shutdown Once the junction temperature rises across the internal over-temperature shutdown threshold, the device shuts off and recovers when the temperature falls below the threshold with hysteresis. TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 15 / 24 EA20230202A2

Application and Implementation Note Information in the following application sections is not part of the 3PEAK’s component specification and 3PEAK does not warrant its accuracy or completeness. 3PEAK’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

Application Information

As an easy-to-use, industrial pinout, step-down voltage regulator, also known as a buck regulator, the TPP36106 usually converts a higher input voltage to the desired output voltage set by the VFB resistor divider. The maximum output current is 1 A. The below section depicts a simplified design flow of circuitry for the TPP36106. Typical Application In most 12-V systems, lower voltage rail such as 5 V/3.3 V is a typical need for microcontrollers, I/Os, and other low voltage components. The below application lists the typical schematic for a 5-V buck regulator. Figure 26. Typical Application Circuit The following steps provide how to design a buck solution for the TPP361060 based on the above.

  1. To establish the desired output voltage (VOUT), employ Equation 1 and proceed with the selection of the resistor divider
  2. For the selection of the output inductor (LO), determine the minimum value (LO_MIN) by applying equations below.

of 500kHz, we recommend selecting an inductor with IOUT = 1A and r =0.5, regardless of the operating conditions. current of 1.5 A would be suitable.

  1. Choose the Output Capacitor (C OUT)

For the selection of the output capacitor (COUT), the minimum value (CO_MIN) is determined by employing equations below. (6) (7) (8) (9) (10) (11) Where ΔIOUT represents the change in output current, IOi signifies the heavy load output current, and IOf represents the light load output current during load transient. ΔVOUT denotes the allowable change in output voltage, while Vi represents the initial output voltage, and Vf represents the maximum allowable output voltage during the transient from light load to heavy load. VO_RIPPLE represents the maximum allowable value of output voltage ripple under maximum output current conditions. RESR indicates the equivalent series resistance of the output capacitor, and ICO_RMS represents the RMS current of the output capacitor. As an example, let's consider VOUT = 5 V, ΔIOUT = 0.75 A - 0.25 A = 0.5 A, VO_RIPPLE < 25 mV, and ΔVOUT < 100 mV. In this case, a minimum output capacitance of approximately 20 μF with an ESR of less than 53 mΩ is calculated. Therefore, with capacitance derating in consideration, 2 * 22 μF ceramic capacitors rated at 25 V with an ESR of 5 mΩ will be used. 4. Choosing the Bootstrap Capacitor (C BST) To ensure proper operation of the TPP36106x device, a 0.1 μF ceramic capacitor should be connected between the BOOT and SW pins. It is recommended to use a ceramic capacitor with X5R or superior grade dielectric and a voltage rating of 10 V or higher. 5. Choosing the Input Capacitor (C IN) To ensure proper operation of the TPP36106x device, it is necessary to connect a 10 μF capacitor between the VIN and GND pins with a short PCB trace. It is recommended to use a ceramic capacitor with X5R or superior grade dielectric and a voltage rating of 50 V or higher. Additionally, it is common to include a 0.1 μF, 50 V decoupling ceramic capacitor as an input capacitor. TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 17 / 24 EA20230202A2

EVM: VOUT = 5 V RefDes Value Description Package MFR Part No. Qty U1 Buck Converter, 36 V, 1 A, 500 kHz, PFM TSOT23-6 3PEAK TPP361060- T6TR 1 C1 NC 0 C2 NC 0 C3 NC 0 C4 100nF Capacitor, 100 nF, 50 V DC, X7R, ±10% 0805 YAGEO CC0805KRX7R9 BB104 1 R1 NC 0 C5 10uF Capacitor, 10 uF, 50 V DC, X7R, ±15% 1210 muRata GXM32ER71H10 6KA10L 1 R2 NC 0 C6 NC 0 C7 100nF Capacitor, 100 nF, 50 V DC, X7R, ±10% 0805 YAGEO CC0805KRX7R9 BB104 0 R3 0R Resistor, 0 Ω, 5%, 0.1W 0603 Panasoni c ERJ-3GEY0R00V 1 L1 18uH 18 uH, 5 ARat, 3.8 ASat, 34.4 mohm 10×4×10mm Wurth 7447798181 1 C8 NC 0 C9 22uF Capacitor, 22 uF, 25 V DC, X7R, ±15% 1210 muRata GRM32ER71E22 6ME15L 1 C10 22uF Capacitor, 22 uF, 25 V DC, X7R, ±15% 1210 muRata GRM32ER71E22 6ME15L 1 C11 NC 0 C12 NC 0 C13 NC 0 R4 49.9Ω Resistor, 49.9 Ω, ±1%, 0.1 W 0603 Viking ARG03FTC49R9 1 R5 24K Resistor, 24 K, ±1%, 0.1 W 0603 Viking ARG03FTC2402 1 R6 3.3K Resistor, 3.3 K, ±1%, 0.1 W 0603 Viking ARG03FTC3301 1 TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 18 / 24 EA20230202A2

  • Both input capacitors and output capacitors must be placed to the device pins as close as possible.
  • It is recommended to bypass the input pin to ground with a 0.1-μF bypass capacitor.
  • It is recommended to use wide and thick copper to minimize I×R drop and heat dissipation.
  • Exposed pad must be connected to the PCB ground plane directly, the copper area must be as large as possible. Layout Recommendations Top Layer Bottom Layer TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 19 / 24 EA20230202A2

(mm) (mm) (mm) (mm) (mm) (mm) (mm) Pin1 Quadrant TPP361060- TPP361061- TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 20 / 24 EA20230202A2

(mm) (mm) (mm) (mm) (mm) (mm) (mm) Pin1 Quadrant TPP361062- TPP361063- TPP361064- TPP361065- TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 21 / 24 EA20230202A2

Package Outline Dimensions TSOT23-6 TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 22 / 24 EA20230202A2

Order Number Operating Temperature Range Package Marking Information MSL Transport Media, Quantity Eco Plan TPP361060-T6TR −40 to 125°C TSOT23-6 610 MSL1 Tape and Reel, 3000 Green TPP361061-T6TR −40 to 125°C TSOT23-6 611 MSL1 Tape and Reel, 3000 Green TPP361062-T6TR −40 to 125°C TSOT23-6 612 MSL1 Tape and Reel, 3000 Green TPP361063-T6TR −40 to 125°C TSOT23-6 613 MSL1 Tape and Reel, 3000 Green TPP361064-T6TR (1) −40 to 125°C TSOT23-6 614 MSL1 Tape and Reel, 3000 Green TPP361065-T6TR (1) −40 to 125°C TSOT23-6 615 MSL1 Tape and Reel, 3000 Green Green: 3PEAK defines "Green" to mean RoHS compatible and free of halogen substances. (1) Contact 3PEAK representatives for more information. TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 23 / 24 EA20230202A2

IMPORTANT NOTICE AND DISCLAIMER Copyright© 3PEAK 2012-2024. All rights reserved. Trademarks. Any of the 思瑞浦 or 3PEAK trade names, trademarks, graphic marks, and domain names contained in this document /material are the property of 3PEAK. You may NOT reproduce, modify, publish, transmit or distribute any Trademark without the prior written consent of 3PEAK. Performance Information. Performance tests or performance range contained in this document/material are either results of design simulation or actual tests conducted under designated testing environment. Any variation in testing environment or simulation environment, including but not limited to testing method, testing process or testing temperature, may affect actual performance of the product. Disclaimer. 3PEAK provides technical and reliability data (including data sheets), design resources (including reference designs), application or other design recommendations, networking tools, security information and other resources "As Is". 3PEAK makes no warranty as to the absence of defects, and makes no warranties of any kind, express or implied, including without limitation, implied warranties as to merchantability, fitness for a particular purpose or non-infringement of any third- party’s intellectual property rights. Unless otherwise specified in writing, products supplied by 3PEAK are not designed to be used in any life-threatening scenarios, including critical medical applications, automotive safety-critical systems, aviation, aerospace, or any situations where failure could result in bodily harm, loss of life, or significant property damage. 3PEAK disclaims all liability for any such unauthorized use. TPP36106 36-V Input, 1-A Synchronous Step-Down Voltage Regulator www.3peak.com 24 / 24 EA20230202A2