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

TPS563231

ACTIVE

4.5-V to 17-V input, 3-A synchronous step-down voltage regulator

Product details

Vin (min) (V) 4.5 Vin (max) (V) 17 Vout (min) (V) 0.6 Vout (max) (V) 7 Iout (max) (A) 3 Iq (typ) (mA) 0.22 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Light Load Efficiency, Over Current Protection, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP3 Duty cycle (max) (%) 87 Type Converter
Vin (min) (V) 4.5 Vin (max) (V) 17 Vout (min) (V) 0.6 Vout (max) (V) 7 Iout (max) (A) 3 Iq (typ) (mA) 0.22 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Light Load Efficiency, Over Current Protection, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP3 Duty cycle (max) (%) 87 Type Converter
SOT-5X3 (DRL) 6 2.56 mm² 1.6 x 1.6
  • 3-A Converter integrated 95-mΩ and 55-mΩ FETs
  • D-CAP3™ mode control with fast transient response
  • Input voltage range: 4.5 V to 17 V
  • Output voltage range: 0.6 V to 7 V
  • Pulse skip mode
  • 600-kHz switching frequency
  • Low shutdown current Less than 12 µA
  • 2% Feedback voltage accuracy (25ºC)
  • Startup from pre-biased output voltage
  • Cycle-by-cycle over current limit
  • Hiccup-mode over current protection
  • Non-latch UVP and TSD protections
  • 6-Pin SOT563 package
  • 3-A Converter integrated 95-mΩ and 55-mΩ FETs
  • D-CAP3™ mode control with fast transient response
  • Input voltage range: 4.5 V to 17 V
  • Output voltage range: 0.6 V to 7 V
  • Pulse skip mode
  • 600-kHz switching frequency
  • Low shutdown current Less than 12 µA
  • 2% Feedback voltage accuracy (25ºC)
  • Startup from pre-biased output voltage
  • Cycle-by-cycle over current limit
  • Hiccup-mode over current protection
  • Non-latch UVP and TSD protections
  • 6-Pin SOT563 package

The TPS563231 is a simple, easy-to-use, 3-A synchronous step-down converter in SOT563 package.

The device is optimized to operate with minimum external component counts and also optimized to achieve low standby current.

These switch mode power supply (SMPS) devices employ D-CAP3 mode control providing a fast transient response and supporting both low-equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

During light load operation, TPS563231 operates in pulse skip mode (PSM), which maintains high efficiency. The TPS563231 is available in a 6-pin 1.6-mm × 1.6-mm SOT563 (DRL) package, and specified from a –40°C to 125°C junction temperature.

The TPS563231 is a simple, easy-to-use, 3-A synchronous step-down converter in SOT563 package.

The device is optimized to operate with minimum external component counts and also optimized to achieve low standby current.

These switch mode power supply (SMPS) devices employ D-CAP3 mode control providing a fast transient response and supporting both low-equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

During light load operation, TPS563231 operates in pulse skip mode (PSM), which maintains high efficiency. The TPS563231 is available in a 6-pin 1.6-mm × 1.6-mm SOT563 (DRL) package, and specified from a –40°C to 125°C junction temperature.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
NEW TPS563203 ACTIVE 4.2-V to 17-V input, 3-A synchronous buck converter in SOT563 Higher efficiency
Pin-for-pin with same functionality to the compared device
NEW TPS563252 ACTIVE 3-V to 17-V input voltage, 3-A, 1.2-Mhz synchronous buck converter in SOT563 This part provides higher switching frequency and power good.

Design & development

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

Evaluation board

TPS563231EVM-032 — 3-A, synchronous step-down converter evaluation module

The TPS563231 is a simple, easy-to-use, 3 A synchronous step-down converter with Eco-Mode in SOT563-6 package. The TPS563231EVM is a fully assembled and tested circuit for evaluating the TPS563231 step-Down Converter. The TPS563231EVM operates from 4.5-V to 17-V input (12-V nominal) and provides a (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS563231 PSpice Transient Model

SLUM638.ZIP (95 KB) - PSpice Model
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
SOT-5X3 (DRL) 6 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