SIP32433

www.vishay.com

Vishay Siliconix

E22-0335. A, 15-Aug-2022

18

Document Number: 63175

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LAYOUT GUIDELINES

The SIP32433A and SIP32433B are protection switches designed to maintain a constant output load current upon over-current

fault. Optimized layout with efficient heat sinking is critical. It is recommended to put as much copper as possible to the devices’

central exposed pad which is connected to ground. Connect all ground planes with all possible thermal VIAs.

The circuit setting components should be laid close to their connection pins. The components include current limit setting

resistor, soft start setting capacitor, and resistors connected to EN / UVLO and OVP pins.

Protection devices such as input TVS or output Schottky diodes must be located close the pins to be protected and routed with

short traces to reduce inductance.

Below is a layout example.

Fig. 42

C

IN

C

OUT

R

LIM

R

PGD

R

OVP2

D

GND

V

OUT+

V

IN+

R

OVP1

C

SS

1

4

2

3

56

10

9

8

7