Product details


Vin (Min) (V) 4.7 Vin (Max) (V) 28 Vout (Min) (V) 1 Vout (Max) (V) 6 Iout (Max) (A) 0.5 Iq (Typ) (uA) 4.8 Switching frequency (Min) (kHz) 1000 Switching frequency (Max) (kHz) 1000 Features Enable, Light Load Efficiency, Output Discharge, Power Good, Synchronous Rectification Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

WSON (DQC) 10 6 mm² 3 x 2 open-in-new Find other Buck converters (integrated switch)


  • DCS-Control™ Topology
  • Input Voltage Range 4.75 V to 28 V
  • Quiescent Current Typically 4.8 µA (Sleep Mode)
  • 100% Duty Cycle Mode
  • Active Output Discharge
  • Power Good Output
  • Output Current of 500 mA
  • Output Voltage Range 1 VDC to 6 V
  • Switching Frequency of Typically 1 MHz
  • Seamless Power Save Mode Transition
  • Undervoltage Lockout
  • Short Circuit Protection
  • Over Temperature Protection
  • Available in 2-mm × 3-mm 10-pin WSON Package
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The TPS6217x is a high efficiency synchronous step-down DC/DC converter, based on the DCS-Control™ topology.

With a wide operating input voltage range of 4.75 V to 28 V, the device is ideally suited for systems powered from multi cell Li-Ion as well as 12 V and even higher intermediate supply rails, providing up to 500-mA output current.

The TPS6217x automatically enters power save mode at light loads, to maintain high efficiency across the whole load range. As well, it features a sleep mode to supply applications with advanced power save modes like ultra low power micro controllers. The power good output may be used for power sequencing and/or power on reset.

The device features a typical quiescent current of 22 µA in normal mode and 4.8 µA in sleep mode. In sleep mode, the efficiency at very low load currents can be increased by as much as 20%. In shutdown mode, the shutdown current is less than 2 µA and the output is actively discharged.

The TPS6217x, available in an adjustable and a fixed output voltage version, is packaged in a small 2-mm × 3-mm 10-pin WSON package.

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Technical documentation

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Type Title Date
* Data sheet TPS6217x 28-V, 0.5-A Step-Down Converter With Sleep Mode datasheet (Rev. C) Mar. 05, 2015
Application note A Topical Index of TI Low Power Buck DC/DC Application Notes (Rev. A) Jun. 25, 2021
User guide TPS62175 Buck Converter Evaluation Module User's Guide (Rev. A) Jun. 08, 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) Apr. 08, 2021
Application note Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
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
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 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 Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 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 Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application note Accurately measuring efficiency of ultralow-IQ devices Jan. 22, 2014
Technical article Invert your biased voltage Oct. 26, 2013
Application note Using the TPS62175 in an Inverting Buck Boost Topology (Rev. A) Oct. 02, 2013
Application note High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions Jul. 25, 2013
Application note Optimizing the TPS62175 Output Filter Oct. 17, 2012
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) Aug. 09, 2012
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 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

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

Hardware development

document-generic User guide

Step Down Converter With Snooze/Sleep/Standby Mode Evaluation Module Board

This EVM is designed to help the user easily evaluate and test the operation and functionality of the TPS62175. The EVM converts a 4.7-V to 28-V input voltage to a regulated 3.3-V output voltage that delivers 500 mA.
  • 4.7V to 28V input voltage
  • 500 mA output current
  • SLEEP mode

Design tools & simulation

SLVM636C.ZIP (82 KB) - PSpice Model
SLVM670A.TSC (491 KB) - TINA-TI Reference Design
SLVM671B.ZIP (68 KB) - TINA-TI Spice Model
SLVMCC5.TSC (479 KB) - TINA-TI Reference Design
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SLVC453.ZIP (281 KB)
SLVC780.ZIP (138 KB)

Reference designs

Ultra-Small 1W, 12V-36V Iso Power Supply for Analog Prog Logic Controller Modules Reference Design
TIDA-00237 Analog input and output modules are a standard component in Programmable Logic Controllera (PLC) or Distributed Control Systems (DCS). More channels per module and slimmer modules bring design challenges to the isolated power supply in those modules. Anyone facing those challenges will benefit from (...)
document-generic Schematic
Closed Loop Stepper Motor Reference Design With Encoder for Stall-Detection
TIDA-01370 — This reference design is used for the stall-detection in a stepper motor driven by DRV8880 in the presence of a closed-loop feedback obtained with an optical rotary incremental encoder.  The reference design shows how to detect a stall using a closed-loop algorithm.
document-generic Schematic
Non-Military Drone, Robot, or RC 2S1P Battery Management Solution Reference Design
TIDA-00982 — This reference design is for a 2S1P battery management solution (BMS) for non-military drone, robot or radio controlled (RC) projects and designs. Quickly add gauging, protection, balancing and charging to any new design for a non-military drone, robot or RC product or use this reference design to (...)
document-generic Schematic
1W Isolated Power Supply with Planar Transformer Reference Design
TIDA-00688 Isolated power supply is a main requirement in every industrial application where modules are connected to Programmable Logic Controllers (PLCs). Often, for those PLC modules, there is only limited space available, making the inclusion of large isolation transformers more difficult. TIDA-00688 (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
WSON (DQC) 10 View options

Ordering & quality

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