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1 Introduction
User's Guide
SLVU190B – April 2007 – Revised July 2008
TPS74901EVM-210
This user's guide describes the characteristics, operation, and use of the TPS74901EVM-210 evaluation
module (EVM). This EVM contains the TPS74901 low-dropout linear regulator IC. This document includes
EVM specifications, recommended test setup, test results, bill of materials (BOM), and a schematic
diagram.
Contents
1 Introduction ................................................................................................................... 1
2 Input/Output Connector Descriptions...................................................................................... 2
3 Board Layout ................................................................................................................. 4
4 Bill of Materials and Schematic ............................................................................................ 6
List of Figures
1 TPS74901 Start-up and PG ................................................................................................ 3
2 Top Assembly Layer ......................................................................................................... 4
3 Top Layer ..................................................................................................................... 4
4 Bottom Layer ................................................................................................................. 5
5 Schematic ..................................................................................................................... 7
List of Tables
1 Typical Performance Specification Summary ............................................................................ 2
2 HPA210 Bill of Materials .................................................................................................... 6
The Texas Instruments TPS74901EVM-210 evaluation module uses the TPS74901 low-dropout linear
regulator IC. These regulators require a low-power bias voltage, V
BIAS
, and a power input voltage, V
IN
. The
regulator is capable of providing output voltages down to 0.8 V, output currents up to 3 A and has an
integrated supervisory circuit with open-drain output that goes to high impedance when the output voltage
reaches regulation (power good or PG). The goal of the EVM is to facilitate evaluation of the TPS74901
IC.
SLVU190B – April 2007 – Revised July 2008 TPS74901EVM-210 1
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