1 Description
The PWR-634EVM is designed as a single output DC-DC converter that demonstrates either the TPS544C20
or the TPS544B20 in a typical low-voltage application while providing a number of test points to evaluate the
performance. It uses a nominal 12-V input bus to produce a regulated 1.0-V output at up to either 30-A or 20-A
of load current, depending on the device installed.
1.1 Typical Applications
• High-Density Power Solutions
• Communications equipment
• Servers and Computing equipment
• Smart Power Systems
1.2 Features
• Regulated 1.0-V output up to 30-ADC, steady-state output current
• Output is marginable and trimmable via the PMBus interface.
– Programmable: UVLO, Soft Start, and Enable via the PMBus interface
– Programmable overcurrent warning and fault limits and programmable response to faults via the PMBus
interface
– Programmable overvoltage warning and fault limit and programmable response to faults via the PMBus
interface
– Programmable high- and low-output margin voltages with a maximum range of 10%, –20% of nominal
output voltage
• Convenient test points for probing critical waveforms
Description
2
TPS544x20 Step-Down Converter Evaluation Module User's Guide
SLUUAY7B – MAY 2014 – REVISED AUGUST 2021
Copyright © 2021 Texas Instruments Incorporated
