Home Power management DC/DC switching regulators Step-down (buck) regulators Buck converters (integrated switch)

TPS62135

ACTIVE

3-17V 4.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN

Product details

Vin (min) (V) 3 Vin (max) (V) 17 Vout (min) (V) 0.8 Vout (max) (V) 12 Iout (max) (A) 4 Iq (typ) (mA) 0.018 Switching frequency (min) (kHz) 2500 Switching frequency (max) (kHz) 2500 Features Enable, Light Load Efficiency, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, VID Interface Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Constant on-time (COT), DCS-Control Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 3 Vin (max) (V) 17 Vout (min) (V) 0.8 Vout (max) (V) 12 Iout (max) (A) 4 Iq (typ) (mA) 0.018 Switching frequency (min) (kHz) 2500 Switching frequency (max) (kHz) 2500 Features Enable, Light Load Efficiency, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, VID Interface Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Constant on-time (COT), DCS-Control Duty cycle (max) (%) 100 Type Converter
VQFN-HR (RGX) 11 6 mm² 3 x 2
  • Output Voltage Accuracy ± 1% (PWM mode)
  • Input Voltage Range: 3 V to 17 V
  • Quiescent Current 18 µA Typ
  • Output Voltage from 0.8 V to 12 V
  • Adjustable Soft-Start
  • Forced PWM or PWM/PFM operation
  • Typical switching frequency of 2.5MHz in forced PWM
  • Precise ENABLE input allows
    • User-Defined Undervoltage Lockout
    • Exact Sequencing
  • 100% Duty Cycle Mode
  • Automatic Efficiency Enhancement AEE™
  • DCS-Control™ Topology
  • Available with Active Output Discharge
  • Optional HICCUP Overcurrent Protection
  • Power Good Output
  • Available in 3-mm x 2-mm VQFN Package
  • Output Voltage Accuracy ± 1% (PWM mode)
  • Input Voltage Range: 3 V to 17 V
  • Quiescent Current 18 µA Typ
  • Output Voltage from 0.8 V to 12 V
  • Adjustable Soft-Start
  • Forced PWM or PWM/PFM operation
  • Typical switching frequency of 2.5MHz in forced PWM
  • Precise ENABLE input allows
    • User-Defined Undervoltage Lockout
    • Exact Sequencing
  • 100% Duty Cycle Mode
  • Automatic Efficiency Enhancement AEE™
  • DCS-Control™ Topology
  • Available with Active Output Discharge
  • Optional HICCUP Overcurrent Protection
  • Power Good Output
  • Available in 3-mm x 2-mm VQFN Package

The TPS62135 and TPS621351 are high efficiency and easy to use synchronous step-down DC-DC converters, based on the DCS-Control™ Topology. The devices wide input voltage range of 3-V to 17-V makes it suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 4-A continuous output current. The TPS62135 automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the device is well suited for applications that require connected standby performance, like ultra low power computers. With the MODE pin set to low, the switching frequency of the device is adapted automatically based on the input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE™) and maintains high conversion efficiency over the whole operation range. It provides a 1% output voltage accuracy in PWM mode and therefore enables the design of a power supply with high output voltage accuracy.

The device has a typical quiescent current of 18 µA. In shutdown mode the current is typically 1 µA and the output is actively discharged for TPS62135 while the output voltage discharge feature is disabled in TPS621351.

The TPS62135 is available as an adjustable version, packaged in a 3-mm x 2-mm VQFN package.

The TPS62135 and TPS621351 are high efficiency and easy to use synchronous step-down DC-DC converters, based on the DCS-Control™ Topology. The devices wide input voltage range of 3-V to 17-V makes it suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 4-A continuous output current. The TPS62135 automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the device is well suited for applications that require connected standby performance, like ultra low power computers. With the MODE pin set to low, the switching frequency of the device is adapted automatically based on the input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE™) and maintains high conversion efficiency over the whole operation range. It provides a 1% output voltage accuracy in PWM mode and therefore enables the design of a power supply with high output voltage accuracy.

The device has a typical quiescent current of 18 µA. In shutdown mode the current is typically 1 µA and the output is actively discharged for TPS62135 while the output voltage discharge feature is disabled in TPS621351.

The TPS62135 is available as an adjustable version, packaged in a 3-mm x 2-mm VQFN package.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device
TPS82130 ACTIVE 17-V input 3-A step-down converter module with integrated inductor Power module version.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 27
Type Title Date
* Data sheet TPS62135, TPS621351 High Accuracy 3-V to 17-V 4-A Step-Down Converters with DCS-Control datasheet (Rev. B) PDF | HTML 04 Apr 2017
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Application note Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. D) PDF | HTML 23 Jan 2023
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 23 May 2022
EVM User's guide TPS6213xEVM Buck Converter Evaluation Module User's Guide (Rev. B) PDF | HTML 08 Jun 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 24 Aug 2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Technical article Output accuracy varies with temperature – 1% is not always 1% PDF | HTML 02 May 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Oct 2017
Application note Feedforward Capacitor to Improve Stability and Bandwidth of TPS621/821-Family (Rev. A) 28 Jun 2017
Application note Sequencing and Tracking With the TPS621-Family and TPS821-Family (Rev. A) 28 Jun 2017
Application note Step-Down LED Driver With Dimming With the TPS621-Family and TPS821-Family (Rev. A) 28 Jun 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 Oct 2016
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 30 Oct 2015
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Application note Using the TPS62150 in a Split Rail Topology 26 Mar 2014
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 25 Jul 2013
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) 09 Aug 2012
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
Application note Voltage Margining Using the TPS62130 15 Dec 2011
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS62135EVM-698 — Evaluation Module for TPS62135, 17-V Input, 4-A Output, Step-Down Converter

The TPS62135EVM-698 is designed to help the user easily evaluate and test the operation and functionality of the TPS62135. The EVM converts a 3V to 17V input voltage to a regulated output voltage of 3.3V at up to 4A output current. The TPS62135 comes in a small 2.0 x 3.0 mm² QFN package.
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS62135 PSpice Transient Model (Rev. A)

SLVMBS7A.ZIP (47 KB) - PSpice Model
Simulation model

TPS62135 SIMPLIS Transient and Average Model (Rev. A)

SLVMDF9A.ZIP (469 KB) - SIMPLIS Model
Simulation model

TPS621351 PSpice Transient Model

SLVMBT6.ZIP (45 KB) - PSpice Model
Calculation tool

SLVC780 Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
Supported products & hardware

Supported products & hardware

Products
Buck converters (integrated switch)
TLV62065 3MHz 2A Step Down Converter in 2x2 SON Package TLV62080 1.2A High Efficient Step Down Converter in 2x2mm SON Package TLV62084 2A High Efficient Step Down Converter in 2x2mm SON Package TLV62084A 2A High Efficient Step Down Converter in 2x2mm SON Package TLV62085 3-A High Efficiency Step-Down Converter in 2x2 QFN TLV62090 3A High Efficiency Step Down Converter in 3x3mm QFN Package TLV62095 4A Synchronous Step Down Converter with DCS Control TLV62130 3-17V 3A Step-Down Converter in 3x3 QFN Package TLV62130A 3-17V 3A Step-Down Converter with DCS-Control in 3x3 QFN Package TLV62150 4-17V 1A Step-Down Converter with DCS-Control™ TLV62150A 4-17V, 1A STEP-DOWN CONVERTER with DCS-Control in 3x3 QFN Package TLV62565 1.5A Buck Converter in SOT23 Package TLV62566 1.5A Buck Converter with Power Good, in SOT23 Package TLV62568 2.5V-5.5V input, 1A high efficiency step-down buck converter in SOT23 and SOT563 package TLV62568A 2.5V-5.5V input, 1A high efficiency step-down buck converter with forced PWM in small SOT563 package TLV62569 2.5V-5.5V input, 2-A high efficiency step-down buck converter in SOT23 and SOT563 package TLV62569A 2A High Efficiency Step-down Buck Converter with forced PWM in SOT Package TLV62585 2.5V-5.5V input, 3-A high efficiency step-down converter in 2x2 QFN or SOT563 package TPS62000 Adjustable, 600-mA, 95% Efficient Step-Down Converter TPS62000-HT High Temperature High-Efficiency Step-Down Low Power DC-DC Converter TPS62020 Adjustable, 600-mA, 95% Efficient Step-Down Converter, 18uA, MSOP-10 TPS62040 Adjustable, 1.2-A, 95% efficient step-down converter, 18 uA, MSOP-10 and QFN TPS62050 Adjustable, 800-mA, 10V Vin, 95% Efficient Step-Down Converter in MSOP-10 TPS62056 3.3-V Output, 800-mA, 10V Vin, 95% Efficient Step-Down Converter in MSOP-10 TPS62060 3MHz, 1.6A Step-Down Converter in 2x2 SON Package TPS62065 3MHz, 2A Step-Down Converter in 2x2 SON Package TPS62065-Q1 3MHz, 2A Automotive Step-Down Converter in 2x2 SON Package TPS62067 3MHz, 2A Step-Down Converter in 2x2 SON Package TPS62067-Q1 Automotive 3-MHz 2-A step-down converter in 2×2 SON package TPS62080 1.2A High Efficient Step Down Converter in 2x2mm SON Package, with Adjustable Vout TPS62080A 1.2A High Efficient Step Down Converter in 2x2mm SON Package TPS62085 3-A Step-Down Converter with DCS-Control and Hiccup Short Circuit Protection in 2x2 HotRod Package TPS62088 2.4-V to 5.5-V input, tiny 6-pin 3-A step-down converter in 1.2-mm x 0.8-mm WCSP TPS62090 3A, 6V input, up to 97% efficiency, Synchronous Step Down Converter with DCS™ Control TPS62090-Q1 Automotive: 3A, 2.5 to 6V input, up to 97% efficiency, 3x3 QFN, Step-Down Converter TPS62095 4A Synchronous Step Down Converter with DCS Control TPS62097 2-A Step Down Converter with Selectable Switching Frequency in HotRod package TPS62097-Q1 2A Automotive Step-Down Converter in 3x3 QFN With Wettable Flanks TPS62100 Multimode 300kHz Synchronous Buck Converter with Adjustable Output TPS62110 Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16 TPS62110-EP Enhanced Product 17 V, 1.5 A Synchronous Step-Down Converter TPS62110-HT High Temperature 17-V, 1.5-A, Synchronous Step-Down Converter TPS62110-Q1 Automotive 3V to 17V, 1.5A Buck Converter in QFN-16 package TPS62113 1.5-A, 17-Vin Step-Down Converter with LBI function in QFN-16 TPS62120 15V, 75mA, 96% efficiency Step-Down Converter with DCS-Control TPS62122 15V, 75mA, 96% efficiency Step-Down Converter TPS62125 3V-17V, 300mA Buck Converter With Adjustable Enable Threshold And Hysteresis TPS62130 3-17V 3A Step-Down Converter with DCS-Control in 3x3 QFN Package TPS62130A 3-V to 17-V, 3-A step-down converter with DCS-control in 3x3 QFN package TPS62130A-Q1 TPS62130A-Q1 3 to 17-V 3-A Automotive Step-Down Converter in 3 × 3 QFN Package TPS62135 3-17V 4.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN TPS62136 3-17V 4.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN TPS62140 3–17V 2A Step-Down Converter with DCS-Control in 3x3 QFN package TPS62140A 3–17V 2A Step-Down Converter with DCS-Control in 3x3 QFN package TPS62147 3-17V 2.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN TPS62148 3-17V 2.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN TPS62150 3–17V 1A Step-Down Converter with DCS-Control in 3x3 QFN package TPS62150A 3-17V 1A 3MHz Step-Down Converter with DCS-Control in 3x3 QFN Package TPS62150A-Q1 TPS62150A-Q1 3 to 17-V 1-A AUTOMOTIVE Step-Down Converter in 3 × 3 QFN Package TPS62160 3V-17V 1A Step-Down Converters with DCS-Control™ TPS62160-Q1 3V-17V 1A Automotive Step-Down Converters in 2x2SON TPS62170 3–17V 0.5A Step-Down Converter with DCS-Control in 2x2 QFN package TPS62170-Q1 3-17V 0.5A Automotive Step-Down Converter in 2x2 QFN package TPS62175 28V, 0.5A Step-Down Converter with SNOOZE Mode TPS62180 4-V to 15-V, 6-A synchronous buck converter with power good, 1% accuracy, and adjustable soft start TPS62184 4-V to 17-V, 6-A synchronous buck converter with power good, 1% accuracy, and adjustable soft start TPS62200 Adjustable, 300-mA, 95% Efficient Step-Down Converter in SOT-23 TPS62220 Adjustable, 400-mA, 95% Efficient Step-Down Converter, 15uA, ThinSOT-23 TPS62240 2.25MHz 300mA Step-Down Converter in 2x2mm SON/TSOT23 Package TPS62250 2.25MHz, 1A Peak Current Limited Step-Down Converter TPS62260 2.25MHz 600mA Step-Down Converter in 2x2mm SON/TSOT23 Package TPS62260-Q1 Automotive 2V to 6V, 2.25MHz Fixed Frequency 600mA Buck Converter in 2x2mm SON/TSOT23 Package TPS62290 2.25MHz 1A Step-Down Converter in 2x2mm SON Package TPS62290-Q1 Automotive 2.3V to 6V, 2.25MHz Fixed Frequency 1A Buck Converter in 2x2mm SON/TSOT23 Package TPS62400 Dual, Adjustable, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN TPS62400-Q1 Automotive Catalog Dual, Adjustable, 400mA & 600mA, 2.25MHz Step-Down Converter w/ 1-Wire Interface TPS62410 2.25MHZ 2x800mA Dual Step-Down Converter with 1-Wire Interface in QFN TPS62410-Q1 Automotive 2.5V to 6V, 2.25MHz Fixed Frequency Dual (800mA/800mA) Buck Converter TPS62420 Dual, Adjustable, 600mA and 1000mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN TPS62420-Q1 Automotive 2.5V to 6V, 2.25MHz Fixed Frequency Dual (1A/600mA) Buck Converter with 1-Wire Interface TPS62480 6A, 2.4V-5.5V input, Synchronous step-down converter with PG Output, Adjust. Soft-start and Optional TPS62510 Adjustable, 96% Efficiency, 1.5A Buck Converter for low input voltages TPS62560 2.25MHz 600mA Step-Down Converter in 2x2mm SON Package TPS62561 2.25MHz 600mA Step-Down Converter in TSOT23 Package TPS62590 2.25MHz, 1A Step-Down Converter in 2 x 2 SON Package TPS62590-Q1 Automotive 2.5V to 6V, 2.25MHz Fixed Frequency 1A Buck Converter in 2x2mm SON Package TPS62750 2.25MHz, Step-Down Converter w/ Programmable Input Current Limits for USB powered Applications TPS62751 2.25MHz, Step-Down Converter w/ Programmble Input Current Limits for USB powered Applications TPS62770 Tiny Single-chip Dual Solution with 360nA Iq Buck and up to 15V Boost in WCSP TPS62810-Q1 Automotive 2.75-V to 6-V, 4-A step-down converter in a 2mm x 3mm wettable-flanks QFN package TPS62810M 2.75-V to 6-V, 4-A step-down converter in a 2-mm x 3-mm QFN package with -55C extended temperature TPS62821 2.4-V to 5.5-V input, 1-A step-down converter with 1% accuracy in 1.5-mm x 2-mm VSON-HR package TPS62822 2.4-V to 5.5-V input, 2-A step-down converter with 1% accuracy in 1.5-mm x 2-mm VSON-HR package TPS62823 2.4-V to 5.5-V input, 3-A step-down converter with 1% accuracy in 1.5-mm x 2-mm VSON-HR package TPS62825 2.4-V to 5.5-V input, 2-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm QFN TPS62826 2.4-V-5.5-V input, 3-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm VSON-HR package TPS62827 2.5-V to 5.5-V input, 4-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm QFN
Buck modules (integrated inductor)
TPS82084 2-A, High-efficiency step-down converter module with integrated inductor TPS82085 3A, High-Efficiency Step-Down Converter Module with Integrated Inductor TPS82130 17-V input 3-A step-down converter module with integrated inductor TPS82140 17V Input 2A Synchronous Step-Down Converter MicroSiP™ Module With Integrated Inductor TPS82150 17V Input 1A Synchronous Step-Down Converter MicroSiP™ Module With Integrated Inductor TPSM82810 2.75-V to 6-V, 4-A step-down module with adjustable-frequency & tracking in 3 x 4-mm μSIP package TPSM82813 2.75-V to 6-V, 3-A step-down module with adjustable-frequency & tracking in 3 x 4-mm μSIP package TPSM82821 5.5-V input, 1-A step-down module with integrated inductor in 2 x 2.5 x 1.1-mm μSIP package TPSM82822 5.5-V input, 2-A step-down module with integrated inductor in 2 x 2.5 x 1.1-mm μSIP package
Precision DACs (≤10 MSPS)
DAC43401 8-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator and comparator DAC43608 8-bit, 8-channel, I2C, voltage-output DAC in tiny QFN package DAC53401 10-bit 1-channel voltage-output smart DAC with Hi-Z, EEPROM, waveform generator and comparator DAC53608 10-Bit, 8-channel, I2C, voltage output DAC in tiny QFN package
Gerber file

PWR698 Gerber

SLVC692.ZIP (296 KB)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
VQFN-HR (RGX) 11 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos