TPS62140

ACTIVE

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

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Product details

Parameters

Vin (Min) (V) 3 Vin (Max) (V) 17 Vout (Min) (V) 0.9 Vout (Max) (V) 6.3 Iout (Max) (A) 2 Iq (Typ) (mA) 0.017 Iq (Typ) (uA) 17 Switching frequency (Min) (kHz) 1250 Switching frequency (Max) (kHz) 2500 Features Enable, Light Load Efficiency, Output Discharge, Over Current Protection, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, Voltage Margining Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN (RGT) 16 9 mm² 3 x 3 open-in-new Find other Buck converters (integrated switch)

Features

  • DCS-ControlTM 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
  • Over Temperature Protection
  • Pin to Pin Compatible with TPS62130 and TPS62150
  • Available in a 3-mm × 3-mm, VQFN-16 Package

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Description

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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Same functionality but is not pin-for-pin or parametrically equivalent 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.
Similar but not functionally equivalent to the compared device:
TPS82140 ACTIVE 17V Input 2A Synchronous Step-Down Converter MicroSiP™ Module With Integrated Inductor Power module version.

Technical documentation

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Type Title Date
* Datasheet TPS6214x 3-V to 17-V 2-A Step-Down Converter in 3 × 3 QFN Package datasheet (Rev. E) Sep. 12, 2016
Selection guides Buck Converter Quick Reference Guide (Rev. A) Mar. 31, 2020
Application notes Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application notes A Topical Index of TI Low Power Buck DC/DC Application Notes Jan. 17, 2018
Application notes Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application notes Feedforward Capacitor to Improve Stability and Bandwidth of TPS621/821-Family (Rev. A) Jun. 28, 2017
Application notes Sequencing and Tracking With the TPS621-Family and TPS821-Family (Rev. A) Jun. 28, 2017
Application notes Step-Down LED Driver With Dimming With the TPS621-Family and TPS821-Family (Rev. A) Jun. 28, 2017
Application notes Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application notes Understanding frequency variation in the DCS-Control(TM) topology Oct. 30, 2015
Application notes Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application notes Optimizing the TPS62130/40/50/60 Output Filter (Rev. A) Jul. 15, 2015
Application notes Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application notes Step-Down Converter With Input Overvoltage Protection Sep. 04, 2014
Application notes Step-Down Converter with Cable Voltage Drop Compensation Jun. 26, 2014
Technical articles Discharge that output rail? May 16, 2014
Application notes TPS62130A Differences to TPS62130 Apr. 02, 2014
Application notes Using the TPS62150 in a Split Rail Topology Mar. 26, 2014
User guides TPS62130EVM-505, TPS62140EVM-505, and TPS62150EVM-505 Evaluation Modules (Rev. A) Jul. 26, 2013
Application notes High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions Jul. 25, 2013
Application notes Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. C) Dec. 19, 2012
Application notes How to Measure the Control Loop of DCS-Control Devices (Rev. A) Aug. 09, 2012
Application notes Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application notes Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application notes Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) Jan. 12, 2012
Application notes Voltage Margining Using the TPS62130 Dec. 15, 2011
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application notes IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description
  • 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-V output. The EVM operates with full-rated performance with an input voltage between 3.7 V and 17 V. The (...)

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VQFN (RGT) 16 View options

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