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Product details

Parameters

Vin (Min) (V) 3 Vin (Max) (V) 17 Vout (Min) (V) 3.3 Vout (Max) (V) 3.3 Iout (Max) (A) 1 Iq (Typ) (uA) 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 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-Control™ Topology
  • Input Voltage Range: 3 V to 17 V
  • Up to 1-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 (typ.)
  • Selectable Operating Frequency
  • Power-Good Output
  • 100% Duty-Cycle Mode
  • Short-Circuit Protection
  • Overtemperature Protection
  • Pin to Pin Compatible with TPS62130 and TPS62140
  • Available in a 3-mm × 3-mm, VQFN-16 Package

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Description

The TPS6215x 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 as well as high output-voltage accuracy by the use of 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 Li-Ion or other batteries as well as from 12-V intermediate power rails. The devices support up to 1-A continuous output current at output voltages between 0.9 V and 6 V (in 100% duty-cycle mode). The soft-start pin controls the output-voltage start-up ramp, 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 turns off and current consumption is less than 2 µA.

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

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Same functionality and pinout but is not an equivalent to the compared device:
TPS62132 ACTIVE 3-17V 3A Step-Down Converter in 3x3 QFN Package A pin-to-pin 3-A product with the same fixed-output voltage.
TPS62142 ACTIVE 3–17V 2A Step-Down Converter in 3x3 QFN package Pin-to-pin 2-A product with the same fixed-output voltage.
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
TPS62162 ACTIVE 3V-17V 1A Step-Down Converters with DCS-Control™ This product has the same functionality but in a smaller package.
TPS62172 ACTIVE 3–17V 0.5A Step-Down Converter in 2x2 QFN package Lower current rated product with the same fixed-output voltage.

Technical documentation

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Type Title Date
* Data sheet TPS6215x 3-V to 17-V, 1-A Step-Down Converter in 3-mm × 3-mm QFN Package datasheet (Rev. D) Sep. 12, 2016
User guide TPS6213x Buck Converter Evaluation Module User's Guide (Rev. B) Jun. 09, 2021
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application note Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application note Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application note Sequencing and Tracking With the TPS621-Family and TPS821-Family (Rev. A) Jun. 28, 2017
Application note Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application note Understanding frequency variation in the DCS-Control(TM) topology Oct. 30, 2015
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application note Optimizing the TPS62130/40/50/60 Output Filter (Rev. A) Jul. 15, 2015
Application note Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application note Step-Down Converter With Input Overvoltage Protection Sep. 04, 2014
Application note Step-Down Converter with Cable Voltage Drop Compensation Jun. 26, 2014
Application note High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions Jul. 25, 2013
Application note Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. C) Dec. 19, 2012
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) Aug. 09, 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application note Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) Jan. 12, 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application note 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 BOARD 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 TPS62150EVM-505 (HPA505-003) uses the TPS62150 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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Package Pins Download
VQFN (RGT) 16 View options

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