neg

V

R2 =

R1

4.6 V

´

PCB Layout Guidelines

TPS65136

PCB layout is an important task in the power supply design. Good PCB layout minimizes EMI and allows very

good output voltage regulation. For the TPS65136, the following PCB layout guidelines are recommended.

Place the power components first. The inductor and the input and output capacitors must be as close as possible

to the IC pins. Place the bypass capacitor for the reference output voltage VAUX as close as possible to pin 4.

Use bold and wide traces for power traces connecting the inductor and input and output capacitors. Use a

common ground plane or a start ground connection.

See the TPS65136EVM-063 user's guide (SLVU244) and evaluation module for a PCB layout example.

Copyright © 2008, Texas Instruments Incorporated

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Product Folder Link(s): TPS65136