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TPS62140A

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3–17V 2A Step-Down Converter with DCS-Control in 3x3 QFN package

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Data sheet

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Same functionality with different pin-out to the compared device
TPS62147 ACTIVE 3-17V 2.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN Forced PWM in a smaller package.
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TPS62902 ACTIVE 3-V to 17-V, 2-A high-efficiency low-IQ buck converter in 1.5-mm × 2-mm QFN package Improved efficiency, smaller size and lower IQ.

TPS62140A

ACTIVE
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Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 17 Switching frequency (min) (kHz) 1250 Switching frequency (max) (kHz) 2500 Features Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification, Tracking, Voltage Margining Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 0.9 Vout (max) (V) 6.3 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 17 Switching frequency (min) (kHz) 1250 Switching frequency (max) (kHz) 2500 Features Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification, Tracking, Voltage Margining Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 0.9 Vout (max) (V) 6.3 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
VQFN (RGT) 16 9 mm² 3 x 3
  • DCS-Control™ topology
  • Input voltage range: 3 V to 17 V
  • Up to 2-A output current
  • Adjustable output voltage from 0.9 V to 6 V
  • Pin-selectable output voltage (nominal, +5%)
  • Programmable soft start and tracking
  • Seamless power-save mode transition
  • Quiescent current of 17 µA (typical)
  • Selectable operating frequency
  • Power-good output
  • 100% duty-cycle mode
  • Short-circuit protection
  • Overtemperature protection
  • Pin-to-pin compatible with the TPS62130 and TPS62150
  • Available in a 3-mm × 3-mm, VQFN-16 package
  • Use the TPS82140 for faster designs
  • DCS-Control™ topology
  • Input voltage range: 3 V to 17 V
  • Up to 2-A output current
  • Adjustable output voltage from 0.9 V to 6 V
  • Pin-selectable output voltage (nominal, +5%)
  • Programmable soft start and tracking
  • Seamless power-save mode transition
  • Quiescent current of 17 µA (typical)
  • Selectable operating frequency
  • Power-good output
  • 100% duty-cycle mode
  • Short-circuit protection
  • Overtemperature protection
  • Pin-to-pin compatible with the TPS62130 and TPS62150
  • Available in a 3-mm × 3-mm, VQFN-16 package
  • Use the TPS82140 for faster designs

The TPS6214x family is an easy-to-use synchronous step-down DC-DC converter optimized for applications with high power density. A high switching frequency of typically 2.5 MHz allows the use of small inductors and provides fast transient response by use of the DCS-Control topology.

With their wide operating input voltage range of 3 V to 17 V, the devices are ideally suited for systems powered from either a Li-Ion or other batteries, as well as from 12-V intermediate power rails. It supports up to 2 A of continuous output current at output voltages between 0.9 V and 6 V (with 100% duty-cycle mode). The output voltage start-up ramp is controlled by the soft-start pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the Enable (EN) and open-drain Power Good (PG) pins.

In power save mode, the devices draw quiescent current of about 17 µA from VIN. Power Save Mode, entered automatically and seamlessly if the load is small, maintains high efficiency over the entire load range. In Shutdown Mode, the device is turned off and current consumption is less than 2 µA.

The device, available in adjustable and fixed output voltage versions, is packaged in a 16-pin VQFN package measuring 3 mm × 3 mm (RGT).

The TPS6214x family is an easy-to-use synchronous step-down DC-DC converter optimized for applications with high power density. A high switching frequency of typically 2.5 MHz allows the use of small inductors and provides fast transient response by use of the DCS-Control topology.

With their wide operating input voltage range of 3 V to 17 V, the devices are ideally suited for systems powered from either a Li-Ion or other batteries, as well as from 12-V intermediate power rails. It supports up to 2 A of continuous output current at output voltages between 0.9 V and 6 V (with 100% duty-cycle mode). The output voltage start-up ramp is controlled by the soft-start pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the Enable (EN) and open-drain Power Good (PG) pins.

In power save mode, the devices draw quiescent current of about 17 µA from VIN. Power Save Mode, entered automatically and seamlessly if the load is small, maintains high efficiency over the entire load range. In Shutdown Mode, the device is turned off and current consumption is less than 2 µA.

The device, available in adjustable and fixed output voltage versions, is packaged in a 16-pin VQFN package measuring 3 mm × 3 mm (RGT).
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Technical documentation

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Type Title Date
* Data sheet TPS6214x 3-V to 17-V 2-A Step-Down Converter in 3 × 3 QFN Package datasheet (Rev. F) PDF | HTML 21 Oct 2021
Application note Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. D) PDF | HTML 23 Jan 2023
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
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 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
Application note Optimizing the TPS62130/40/50/60 Output Filter (Rev. A) 15 Jul 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Application note Step-Down Converter With Input Overvoltage Protection 04 Sep 2014
Application note Step-Down Converter with Cable Voltage Drop Compensation 26 Jun 2014
Application note TPS62130A Differences to TPS62130 02 Apr 2014
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 Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) 12 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

TPS62140EVM-505 — Evaluation Module for TPS62140 a 2-A, synchronous, step-down converter in a 3x3-mm, 16-pin QFN

  • Related Terms:
    • Synchronous Step Down DC-DC Converter
    • DC to DC Step Down Converter
    • Buck DC DC Converter

The TPS62140EVM-505 (HPA505-002) uses the TPS62140 adjustable version and is set to a 3.3-Voutput. The EVM operates with full-rated performance with an input voltage between 3.7 V and 17 V. (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS62140A PSpice Unencrypted Transient Model (Rev. A)

SLVM908A.ZIP (59 KB) - PSpice Model
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Calculation tool

SLVC366 — Design Tool for Analog Dimming Using a PWM Signal

Supported products & hardware

Supported products & hardware

Products
Automotive LED drivers
TPS61161-Q1 — Automotive White LED driver with Digital and PWM brightness control in 2mm x 2mm QFN Package
Backlight LED drivers
TPS61160 — White LED driver with Digital and PWM brightness control in 2mm x 2mm Package TPS61160A — White LED driver with PWM brightness control in 2mm x 2mm Package. up to 10 LEDs in Series TPS61161 — White LED driver with Digital and PWM brightness control in 2mm x 2mm WSON Package TPS61165 — High brightness white LED driver in 2mm x 2mm QFN Package TPS61166 — White LED driver w/ integrated power Diode and Fast Burst dimming Mode
AC/DC & DC/DC converters (integrated FET)
TLV62130A — 3-17V 3A Step-Down Converter with DCS-Control in 3x3 QFN Package TLV62150A — 4-17V, 1A STEP-DOWN CONVERTER with DCS-Control in 3x3 QFN Package 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 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 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
Download
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
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
Power 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 — 6V 3A step-down module with optional frequency synchronization, adjustable soft-start and tracking 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
AC/DC & DC/DC converters (integrated FET)
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
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