name: HT82P604B function: DC-DC Converter package: SOP20,20 manufacturer: Holtek +--()--+ VSEN | 1 20| RT OSCET | 2 19| OVP SS | 3 18| VCC VID0 | 4 17| LGATE VID1 | 5 16| PGND VID2 | 6 15| BOOT VID3 | 7 14| UGATE VID4 | 8 13| PHASE COMP | 9 12| PGOOD FB |10 11| GND +------+ This pinout came from the Chipdir: http://www.chipdir.org/