TPS544C20EVM-634: 1V @ 30A, 8 ~ 14V in, Buck


The PWR-634EVM evaluation module uses either the TPS544C20 or TPS544B20 devices. The TPS544C20 and TPS544B20 are highly integrated synchronous buck converters that are designed for up to 30-A or 20-A current output, respectively.

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.


Manufacturer Texas Instruments
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 1 V
Current Out 30 A
Voltage In 8 ~ 14 V
Efficiency @ Conditions >90%, 8V in, 1V @ 7 ~ 16 A
>85%, 14V in, 1V @ 7 ~ 23.5 A
>85%, 12V in, 1V @ 6 ~ 23.5 A
Voltage Out Range 0.6 ~ 5.5 V
Features Current Limit (Adj. or Fixed)
Over Current Protection
PMBus Interface
Power Good Output
Pre-Biased Startup
Remote Sensing
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency 500 kHz
Standby Current [Typical] - Not Given
Quiescent Current [Typical] - Not Given
Component Count + Extras 40 + 15
Internal Switch Yes
Design Author Texas Instruments
Application / Target Market Auxiliary Power Supply
Memory Back-up
Standby Current [Maximum] - Not Given
Quiescent Current [Maximum] - Not Given
Main I.C. Base Part TPS544C20
Date Created By Author 2014-05
Date Added To Library 2015-05

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