Datasheet

User's Guide

SLVU219A–August 2007–Revised November 2010

Using the TPS40140EVM-003 A 32-A Single Output

Two-Phase Stackable Synchronous Buck Converter

The TPS40140EVM-003 evaluation module (EVM) is a single output two-phase synchronous buck

converter. The EVM delivers 1.5 V at 32 A. The module uses the TPS40140 dual or 2-phase stackable

synchronous buck controller. The EVM is also stackable with the other EVM to construct a multiphase

converter.

1 Description

TPS40140EVM-003 is designed to use a regulated 10.8-V to 13.2-V bus to produce high-current regulated

output. The TPS40140EVM-003 evaluation module demonstrates the TPS40140 in a typical regulated bus

to low-voltage application while providing a number of test points to evaluate the performance of the

TPS40140 in a given application.

1.1 Applications

• Graphics Cards

• Internet Servers

• Networking Equipment

• Telecommunications Equipment

• DC Power Distributed Systems

1.2 Features

• 10.8-V to 13.2-V Input Range

• 1.5-V Fixed Output

• 32-A

Steady State Current per Output

• 300-kHz Switching Frequency per Phase

• Single Main Switch N-channel MOSFET and Two Synchronous Rectifier N-channel MOSFETs per

Phase

• Convenient Test Points for Probing Critical Waveforms and Non-Invasive Loop Response Testing

Using the TPS40140EVM-003 A 32-A Single Output Two-Phase Stackable SLVU219A–August 2007–Revised November 2010

Synchronous Buck Converter

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