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SC4607 Datasheet(PDF) 14 Page - Semtech Corporation

Part # SC4607
Description  Very Low Input, MHz Operation, High Efficiency Synchronous Buck
PDF  17 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4607 Datasheet(HTML) 14 Page - Semtech Corporation

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 2005 Semtech Corp.
www.semtech.com
SC4607
POWER MANAGEMENT
Design Example 2: 3.3V to 2.5V @ 20A application with SC4607
Application Information (Cont.)
Design Example 1: 3.3V to1.5V @12A application with SC4607
R3
1.05k
C3
4.7u
C2 1.5n
R1
20k
C1
270p
C18
0.1u
Vin=3.3V
C7
330u
D2
L1 1.3u
C5
22u
C4
22u
C17
1u
M11
M12
M22
C10
150u
M21
C9
2.7n
R8
365
Vo=2.5V/20A
R7
16.5k
R9
4.12k
R6
0
R5
0
C16
560pF
ETQPAF1R3EA
4TPD330M
4 x C3216X5R0J226M
2 x 4TPE150M
4 x Si7882
VCC
2
ISET
3
COMP
4
FS/SY NC
5
BST
1
DRVH
10
DRVL
8
VSENSE
6
GND
7
PHASE
9
U1
SC4607
C13
22u
C14
22u
C11
150u
R13
1
R3
C3
4.7u
C2 2.2n
C7
330u
R1
14.3k
C1
270p
C14
100u
Vin=3.3V
D2
L1
2.3u
C5
22u
C4
22u
C71
1u
M1
R6
0
R5
0
C13
100u
M2
C11
22u
C9
5.6n
R8
169
Vo=1.5V/12A
R7
8.25k
R9
4.12k
C16
560pF
C10
22u
VCC
2
ISET
3
COMP
4
FS/SY NC
5
BST
1
DRVH
10
DRVL
8
VSENSE
6
GND
7
PHASE
9
U1
SC4607
R13
1



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