SC1538 查看數據表（PDF） - Semtech Corporation
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SC1538 Datasheet PDF : 4 Pages
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DUAL LINEAR CONTROLLER
SC1538
PRELIMINARY - October 5, 1999
PIN DESCRIPTION
Pin Pin Name Pin Function
1
DRV1 Output of regulator #1. Drives the gate of an N-channel MOSFET to maintain 1.818V/
2.525V.
2
SNS1 Regulator #1 Sense input. Use as a remote sense to the source of the N-channel MOSFET
(Output 1).
3
EN1 Active high enable control with internal pullup. Output of regulator #1 turns off when EN1 is
taken low.
4
GND Ground
5
EN2 Active high enable control with internal pullup. Output of regulator #2 turns off when EN2 is
taken low.
6
SNS2 Regulator #2 Sense input. Use as a remote sense to the source of the N-channel MOSFET
(Output 2).
7
DRV2 Output of regulator #2. Drives the gate of an N-channel MOSFET to maintain 1.515V/
2.525V.
8
VIN +12V Supply.
APPLICATION CIRCUIT
1.818V / 2.525V OUT
1.818V / 2.525V ENABLE
C1
100uF
Q1
PHB11N06LT
C2
100uF
C3
100uF
3.3V IN
12V IN
Q2
PHB11N06LT
C4
100uF
C5
100uF
C6
100uF
1.515V / 2.525V OUT
R1
R2
10k
10k
U1
1 DRV1
2 SNS1
3 EN1
4 GND
VIN 8
DRV2 7
SNS2 6
EN2 5
SC1538
C7
0.1uF
1.818V / 2.525V ENABLE
© 1999 SEMTECH CORP.
2
652 MITCHELL ROAD NEWBURY PARK CA 91320
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