1 Description
The TPS546B24AEVM-2PH is a two-phase buck design stacking two TPS546B24A devices. It designed
for a nominal 12-V bus and to produce a regulated 0.8-V output at up to 40 A of load current. The
TPS546B24AEVM-2PH is designed to demonstrate stacking operation of the TPS546B24A in a two-phase, low-
output voltage application while providing a number of test points to evaluate the performance of the devices.
The TPS546B24AEVM-2PH can be modified to single-phase buck converters by changing the components
assembled. See
for more information on single-phase configuration.
1.1 Before You Begin
The following warnings and cautions are noted for the safety of anyone using or working close to the
TPS546B24AEVM-2PH. Observe all safety precautions.
Warning
The TPS546B24AEVM-2PH circuit module may become hot during operation due
to dissipation of heat. Avoid contact with the board. Follow all applicable safety
procedures applicable to your laboratory.
!
Caution
Do not leave the EVM powered when unattended.
WARNING
The circuit module has signal traces, components, and component leads on the bottom of the board.
This may result in exposed voltages, hot surfaces, or sharp edges. Do not reach under the board
during operation.
CAUTION
The circuit module may be damaged by over temperature. To avoid damage, monitor the
temperature during evaluation and provide cooling, as needed, for your system environment.
CAUTION
Some power supplies can be damaged by application of external voltages. If using more than
one power supply, check the equipment requirements and use blocking diodes or other isolation
techniques, as needed, to prevent damage to the equipment.
CAUTION
The communication interface is not isolated on the EVM. Be sure no ground potential exists between
the computer and the EVM. Also be aware that the computer is referenced to the battery potential of
the EVM.
1.2 Typical Applications
The TPS546B24A device is designed for the following applications:
• High-density power solutions
• Wireless infrastructure
• Switcher
• Router network
• Server
• Storage
• Smart power systems
Description
4
TPS546B24A 2-Phase SWIFT™ Step-Down Converter Evaluation Module
User's Guide
SLUUC48A – FEBRUARY 2020 – REVISED FEBRUARY 2022
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