SR036MG データシートの表示（PDF） - Supertex Inc
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SR036MG Datasheet PDF : 19 Pages
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www.supertex.com
1235 Bordeaux Drive • Sunnyvale • CA • 94089 • Telephone (408) 744-0100 • Fax (408) 222-4895
Technical Bulletin: SR03x Plate Connections
This bulletin applies to the SR036 and SR037 in the SG (Power SO-8) package.
Increased efficiency and lower no-load power consumption of SR03x based regulator circuits can be
achieved by assuring no electrical connections are made to the underside plate on the SR03x package.
A copper area should still be employed to provide needed heat sinking, however, this copper area should
be electrically floating. For maximum heat sinking capability, do not cover the copper area with solder
mask.
Existing PCB layouts with the plate grounded should be corrected.
Solder underside plate to
copper area for heat sinking
Make no electrical connections
to copper area
Early SR03x demo boards erroneously had the underside plate connected to ground. These boards will
exhibit decreased efficiency and higher no load power. New, corrected demo boards may be ordered
from Supertex’s web site.
28APR03
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