Datasheet

Introduction

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1 Introduction

The TPS65708 is a small PMU designed for embedded camera modules or other portable, low-power

consumer end equipment. It contains two high-efficiency step-down converters, two low-dropout linear

regulators (LDOs), and a 7.5-mA current sink for driving an LED.

The TPS65708EVM-587 is a fully assembled and tested platform for evaluating the operation and

performance of the TPS65708 PMU device.

1.1 Features

• Input voltage range: 3.6 V up to 6.0 V

• 2 x 200-mA step-down converter for TPS65708

• 2.25-MHz switching frequency

• Two general-purpose 200-mA LDOs

• PWM dimmable current sink

1.2 Applications

• USB cameras

• Handheld applications

1.3 Power-Supply Requirements

A dc power supply capable of delivering 5 V at 1 A is required to operate this EVM.

1.4 Additional Requirements

In order to operate this EVM, the following components must be connected and properly configured. All

components and connectors are shipped with the EVM. If any component is missing, contact your local

distributor or Texas Instruments for a replacement.

2 TPS65708EVM Output Voltages and Current

Table 1 summarizes the output voltages and current of the TPS65708EVM.

Table 1. TPS65708EVM Output Voltages and Current

Orderable EVM

Number Device Part Number Output Voltage Output Current Power-Up Sequence

TPS65708EVM-587 TPS65708 DCDC1 and DCDC2 = DCDC1, then DCDC2,

DCDC1 = 3.3 V

400 mA then LDO1, then LDO2

LDO1 and LDO2 = 200

DCDC2 = 1.8 V

LDO1 = 2.8 V

LDO2 = 1.2 V

TPS65708EVM SLVU402–October 2010

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