DocID18265 Rev 8

19/25

AN3319

Layout

7

Layout

Figure 13. STEVAL-ISV006V2 PCB top view

Figure 14. STEVAL-ISV006V2 PCB bottom view

Layout guidelines

PCB layout is very important in order to minimize voltage and current ripple, high frequency

resonance problems, and electromagnetic interference. It is essential to keep the paths

where the high switching current circulates as small as possible in order to reduce radiation

and resonance problems.

Large traces for high current paths and an extended ground plane reduce noise and

increase efficiency.

The output and input capacitors should be placed as close as possible to the device.

The external resistor dividers, if used, should be as close as possible to the V

MPP-SET

and

V

CTRL

pins of the device, and as far as possible from the high current circulating paths, in

order to avoid picking up noise.