1 Introduction
The TPS40195EVM evaluation module (EVM) is a synchronous buck converter providing a fixed 3.3-V output at
up to 20 A from a 12-V input bus. The EVM is designed to start up from a single supply, so no additional bias
voltage is required for start up. The module uses the
TPS40195 4.5-V to 20-V Input, Voltage-Mode, Synchrns
2 Description
The TPS40195EVM is designed to use a regulated 12-V bus (8 V to 20 V) to produce a regulated 3.3-V output
at up to 20 A of load current. TPS40195EVM is designed to demonstrate the TPS40195 in a typical 12-V bus to
low-voltage application while providing a number of test points to evaluate the performance of the TPS40195 in a
given application.
2.1 Applications
• Non-isolated medium current point-of-load and low-voltage bus converters
• Networking equipment
• Telecommunications equipment
• Computer peripherals
• Digital set-top box
2.2 Features
• 8-V to 20-V input range
• 3.3-V fixed output
• 20-A
DC
steady state output current
• 300-kHz switching frequency
• 2-layer PCB with all components on top side
• Convenient test points for probing switching waveforms and non-invasive loop response testing
Introduction
2
TPS40195 Buck Controller Evaluation Module User's Guide
SLUU297B – DECEMBER 2007 – REVISED JANUARY 2022
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