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TPS40132 Datasheet SYNCHRONOUS BUCK CONTROLLER

Manufacturer: Texas Instruments

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General Description

The TPS40132 is a two-phase synchronous buck controller that is optimized for low-output voltage, high-output current applications powered from a supply between 1 V and 40 V.

A multi-phase converter offers several advantages over a single power stage including lower current ripple on the input and output capacitors, faster transient response to load steps, improved power handling capabilities, and higher system efficiency.

Each phase can be operated at a switching frequency up to 1 MHz, resulting in an effective ripple frequency of up to 2 MHz at the input and the output.

Overview

www.ti.com TPS40132 SLUS776B – DECEMBER 2007 – REVISED JUNE 2011 TWO-PHASE, SYNCHRONOUS BUCK CONTROLLER WITH INTEGRATED MOSFET DRIVERS Check for Samples:.

Key Features

  • 1.
  • 2 Supports 5-V Output.
  • Two-Phase Interleaved Operation.
  • Operates With Pre-Biased Outputs.
  • 1-V to 40-V Power Stage Operation Range.
  • Requires VIN5 at 50 mA (typ) Depending on External MOSFETs and Switching Frequency.
  • 10-μA Shutdown Current.
  • Programmable Switching Frequency up to 1 MHz/Phase.
  • Current Mode Control with Forced Current Sharing.
  • 0.6-V Reference Voltage with 0.8% Accuracy from 0°C to 85°C Temperature Rang.

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