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SC1408(2000) 查看數據表(PDF) - Semtech Corporation
零件编号
产品描述 (功能)
生产厂家
SC1408
(Rev.:2000)
Low Voltage, Boost DC-DC Controller
Semtech Corporation
SC1408 Datasheet PDF : 12 Pages
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LOW VOLTAGE, BOOST DC-DC
CONTROLLER
August 22, 2000
Fig. 3: Achieving output voltages greater than 16.5V
SC1408
D4
3.3V IN
1N4148
R6 470
L1 22uH
C2
100uF
+
D3
12V
C4
0.1uF
C5
0.1uF
U1
2
BST
GATE
1
4
SHDN ISENSE
8
5
REF
FB
3
7
GND
AGND
6
SC1408IS
D1
B130T
R3
200k
Q1
IRL3103S
25V OUT
+
C8
100uF
R2
0.05Ohm
R4
10.0k
+
C3
100uF
Fig. 4: Implementing shutdown with input/output isolation
3.3V IN
Q2
Si2301DS
R5
5.1k
J1
SHORT = RUN
OPEN = SHUTDOWN
1
2
C2
100uF
+
L1 22uH
C4
0.1uF
C5
0.1uF
U1
2
BST
GATE
1
4
8
SHDN ISENSE
5
REF
FB
3
7
GND
AGND
6
SC1408IS
D1
B130T
R3
90k
Q1
IRLL3303
12V OUT
+
C8
100uF
R2
0.05Ohm
R4
10.0k
+
C3
100uF
© 2000 SEMTECH CORP.
6
652 MITCHELL ROAD NEWBURY PARK CA 91320
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