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User's Guide
TPS40077 Buck Controller Evaluation Module User's
Guide
The TPS40077EVM-001 evaluation module (EVM) is a synchronous buck converter providing a fixed 1.8-V
output at up to 10 A from a 12-V input bus. The EVM is designed to start up from a single supply; no additional
bias voltage is required for start-up. The TPS40077 reduced-pin count synchronous buck controller used in
the EVM employs predictive gate drive. This feature provides improved efficiency by eliminating shoot-through
switching current,and minimizing the reverse-conduction time of the synchronous rectifier FET.
1
Introduction.............................................................................................................................................................................2
1.1 Description.........................................................................................................................................................................
1.2
Applications........................................................................................................................................................................2
1.3 Features.............................................................................................................................................................................
3
Schematic................................................................................................................................................................................4
3.2 Disable (J3)........................................................................................................................................................................
Up.........................................................................................................................................................................5
Setup................................................................................................................................................................6
Procedure..........................................................................................................................................7
3.7 Equipment Shutdown.........................................................................................................................................................
4.1
Efficiency............................................................................................................................................................................9
4.2 Line and Load Regulation..................................................................................................................................................
4.3 Output Ripple...................................................................................................................................................................
4.4 Transient Response.........................................................................................................................................................
Plot..........................................................................................................................................................................11
Materials.....................................................................................................................................................................14
7 Revision History...................................................................................................................................................................
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SLVU192B - FEBRUARY 2007 - REVISED JANUARY 2022
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ABSTRACT
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Layout.................................................................................................................................12
Copyright © 2022 Texas Instruments Incorporated
Curves...............................................................................9
TPS40077 Buck Controller Evaluation Module User's Guide
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