NCP81038 controller equivalent, synchronous buck controller.
* Wide Input Voltage Range: from 5.5 V to 28 V
* Built−in 5 V / 60 mA LDO
* Built−in selectable 3.3 V or 12 V / 10 mA LDO
* Three Selectable Fixed Frequen.
* Desktop / Notebook Computers
* System Power Supplies
* I/O Power Supplies
http://onsemi.com
MARKING DIAG.
Pin No. Symbol
Description
1, 21
GH1, GH2
Gate driver output of the top N−channel MOSFET.
2, 20
BST1, BST2
Top gate driver input supply, a bootstrap capacitor connection between SWNx and this pin.
3, 19
SWN1, SWN2
Switch node between the .
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