SC1408IMS.TR 查看數據表（PDF） - Semtech Corporation
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SC1408IMS.TR Datasheet PDF : 12 Pages
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SC1408
POWER MANAGEMENT
Typical Application Circuit (Cont.)
Fig.1: Typical Application - Boost Configuration
1.8V-16.5V IN
L1 22uH
Coilcraft DO3316P-223
C2
100uF +
U1
2 BST GATE 1
4 EN ISENSE 8
5 REF FB 3
7 GND AGND 6
C5
0.1uF
SC1408CS
D1
B130T
R3
See Table
Q1
IRLR024N
Vin to 16.5V OUT
C9
See Text
+
C8
100uF
R2
0.1Ohm
R4
10.0k
+
C3
100uF
Fig.2: Typical Application - Buck/Boost (SEPIC) Configuration
D2 1N4148
1.8V TO 5V IN
L1A 22uH
2
1
C2
100uF +
C4
0.1uF
U1
2 BST GATE 1
4 EN ISENSE 8
5 REF FB 3
7 GND AGND 6
C5
0.1uF
SC1408CS
C1
100uF
+
Q1
IRLL3303
D1
B130T
R3
See Table
0V TO (16.5V-Vin) OUT
C9
See Text
+
C8
100uF
R2
0.1Ohm
4
L1B
22uH
R4
10.0k
+
C3
100uF
3
L1A/L1B IS COUPLED INDUCTOR
PULSE PE-53718 OR
EQUIVALENT
2005 Semtech Corp.
9
www.semtech.com
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