SP619 Datasheet, PDF (5/7 Pages) Sipex Corporation – High Current Power Switch

Overtemperature Protection
The SP619 has built-in overtemperature
protection to protect the part against dam-
age if the die temperature gets too hot. The
typical thermal cutoff is about 150ºC. The
part will self recover if the temperature drops
below the thermal restart threshold of about
120ºC.
Layout Considerations
The input and output decoupling capacitors
should be placed as close as possible to the
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EH VWLWFKHG WR WKH *1' SODLQ WR KHOS ZLWK
thermal performance. The input and output
traces should be as large as possible. The
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and should be placed close to the output de-
coupling cap.
Vin ^146-6642-00
U1 ^Vout
ON/OFF
Solved by
GND
SP619
TM
Recommended Layout
THEORY OF OPERATION
April 2008 Rev L
SP619 High Current Power Switch
5
© 2008 EXAR Corporation