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SC1157CS Datasheet(PDF) 3 Page - Semtech Corporation |
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SC1157CS Datasheet(HTML) 3 Page - Semtech Corporation |
3 / 5 page SC1157 PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS © 2000 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 Preliminary - August 7, 2000 3 PIN CONFIGURATION NOTE: (1) All logic level inputs and outputs are open collector TTL compatible. PIN DESCRIPTION Pin # Pin Name Pin Function 1 GND Small Signal Analog and Digital Ground 2 REF Buffered Reference output 3V CC Chip Supply Voltage 4 CS(-) Current Sense Input (negative) 5 CS(+) Current Sense Input (positive) 6 PGND Power Ground for High and Low Side Drivers 7 DH High Side Driver Output 8 DL Low Side Driver Output 9 BSTL Vcc for Low Side Driver (Boost) 10 BSTH Vcc for High Side Driver (Boost) 11 SHUTDOWN Logic Low shuts down the converter; High or open for normal operation. 12 VOSENSE Top end of internal feedback chain 13 VID3 (1) Programming Input (MSB) 14 VID2 (1) Programming Input 15 VID1 (1) Programming Input 16 VID0 (1) Programming Input (LSB) |
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