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Home > Embedded ICs > Embedded - Microcontroller Unit (MCU) > TPS54A24RTWR
Texas Instruments

TPS54A24RTWR

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TPS54A24RTWR Overview

The TPS54A24 is a full-featured 17-V, 10-A synchronous step-down DC/DC converter in astandard 4 mm × 4 mm WQFN package.

The device is optimized for small solution size through high efficiency and integratingthe high-side and low-side MOSFETs. Further space savings are achieved through peak-current-modecontrol, which reduces component count, and by selecting a high switching frequency, reducing theinductor footprint.

The peak-current-mode control simplifies the loop compensation and provides fasttransient response. Cycle-by-cycle peak current limiting on the high-side and low-side sourcingcurrent limit protects the device in overload situations. Hiccup limits MOSFET power dissipation ifa short circuit or over loading fault persists.

A power-good supervisor circuit monitors the regulator output. The PGOOD pin is anopen-drain output and goes high impedance when the output voltage is in regulation. An internaldeglitch time prevents the PGOOD pin from pulling low unless a fault has occurred.

A dedicated EN pin can be used to control the regulator on/off and adjust the inputundervoltage lockout. The output voltage start-up ramp is controlled by the SS/TRK pin, whichallows operation as either a standalone power supply or in tracking situations.

Features

  • Standard 4-mm × 4-mm WQFN package
  • –40°C to +150°C Operating junction temperature
  • 200-kHz to1.6-MHz Fixed switching frequency
  • Peak-current-modecontrol
  • Synchronizes to external clock
  • 0.6-V Voltagereference ±0.85% over temperature
  • 0.6-V to 12-V Output voltagerange
  • Safe start-up into prebiased output voltage
  • Hiccupcurrent limit
  • Adjustable soft start and powersequencing
  • Adjustable input undervoltage lockout
  • Power-good output monitor for undervoltage and overvoltage
  • 3-μA Shutdowncurrent
  • Output overvoltage protection
  • Non-latch thermalshutdown protection
  • Create a custom design using the TPS54A24 with theWEBENCH? Power Designer

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Specifications

Circuit Diagram

TPS54A24RTWR

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