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TPS40090 Datasheet MULTIPHASE CONTROLLER

Manufacturer: Texas Instruments

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General Description

The TPS4009x is a two-, three-, or four-phase programmable synchronous buck controller that is optimized for low-voltage, high-current applications powered by a 5-V to 15-V distributed supply.

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 4-MHz at the input and the output in a four-phase application.

Overview

www.ti.com PW RHD TPS40090 TPS40091 SLUS578B – OCTOBER 2003 – REVISED MAY 2006 HIGH-FREQUENCY, MULTIPHASE CONTROLLER Check for Samples: TPS40090,.

Key Features

  • 1.
  • 2 Two-, Three-, or Four-Phase Operation.
  • 5-V to 15-V Operating Range.
  • Programmable Switching Frequency Up to 1-MHz/Phase.
  • Current Mode Control With Forced Current Sharing(1) (1) Patent pending.
  • 1% Internal 0.7-V Reference.
  • Resistive Divider Set Output Voltage.
  • True Remote Sensing Differential Amplifier.
  • Resistive or DCR Current Sensing.
  • Current Sense Fault Protection.
  • Programmable Load Line.
  • Com.

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