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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.6 Vout (Max) (V) 7 Iout (Max) (A) 3 Iq (Typ) (uA) 220 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 600 Features Enable, Light Load Efficiency, Over Current Protection, Pre-Bias Start-Up, Synchronous Rectification, UVLO Fixed, Soft Start Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

SOT-5X3 (DRL) 6 2 mm² 1.65 x 1.2 open-in-new Find other Buck converters (integrated switch)

Features

  • 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

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Description

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.

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Technical documentation

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description
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 (...)
Features
  • 4.5-V to 17-V input voltage range
  • Up to 3-A output current
  • Switching frequency 600 KHz
  • DCAP2 control
  • PFM, eco-mode

Design tools & simulation

SIMULATION MODEL Download
SLUM638.ZIP (95 KB) - PSpice Model
SIMULATION TOOL Download
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 (...)
Features
  • 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
  • (...)

CAD/CAE symbols

Package Pins Download
SOT-5X3 (DRL) 6 View options

Ordering & quality

Information included:
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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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Support & training

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