Datasheet

User's Guide

SLUU671–December 2011

5-A Step-Down Regulator with Integrated Switcher

1 Introduction

The TPS53316EVM-075 evaluation module (EVM) is a step-down regulator featuring TPS53316. The

TPS53316 is a fully integrated step-down regulator employing voltage mode control.

2 Description

The TPS53316EVM-075 is designed to use a 3.3-V or 5-V voltage rail to produce a regulated 1.5-V output

at up to 5-A load current. The TPS53316EVM-075 is designed to demonstrate the TPS53316 in a typical

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

TPS53316.

2.1 Typical Applications

• Low-Voltage Applications for 5-V Step-Down Rails

• Low-Voltage Applications for 3.3-V Step-Down Rails

2.2 Features

The TPS53316EVM-075 features:

• Continuous 5-A Output Current Capability

• Supports all MLCC Output Capacitors

• Voltage Mode Control

• Selectable Light-Load Operation Modes (Forced Continuous Conduction Mode (FCCM),

Diode-Emulation (DE) Mode and High-Efficiency (HEF) Mode)

• Selectable Switching Frequency Settings (750 kHz, 1.1 MHz, and 2.0 MHz)

• Selectable Overcurrent Threshold

• Soft-Stop Output Discharge During Disable

• Over Current, Over Voltage, Under voltage and Over Temperature Protections

• Power Good Indication

• Pre-Bias Output Voltage Start Up

• Convenient Test Points for Probing Critical Waveforms

5-A Step-Down Regulator with Integrated Switcher SLUU671–December 2011

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