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SC4609 Datasheet(PDF) 13 Page - Semtech Corporation

Part # SC4609
Description  Low Input, MHz Operation, High Efficiency Synchronous Buck
PDF  18 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4609 Datasheet(HTML) 13 Page - Semtech Corporation

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 2006 Semtech Corp.
www.semtech.com
SC4609
POWER MANAGEMENT
Application Information (Cont.)
Design Example 1. 3V to1.5V @10A application with SC4609
R3
C3
4.7u
C2
2.2n
R1
14.3k
C7
330u
C1
1.8n
D2
L1
2.3u
C4
22u
C17
1u
M1
C10
220u
M2
C5
22u
C9
8.2n
R8
107
Vout = 1.5V/10A
R7
5.76k
R9
2.87k
R6
0
R5
0
C16
470pF
Css
22n
C13
22u
C14
22u
Vin=3V - 5.5V
R13
1
VCC
1
ISET
2
COMP
3
FSET
4
BST
12
DRVH
11
DRVL
9
AGND
7
PGND
8
PHASE
10
SS
6
VSENSE
5
U1
SC4609
R3
C3
4.7u
C2
2.2n
R1
14.3k
C7
330u
C1
1.8n
D2
L1
2.3u
C4
22u
C17
1u
M1
C10
220u
M2
C5
22u
C9
8.2n
R8
107
Vout = 1.5V/10A
R7
5.76k
R9
2.87k
R6
0
R5
0
C16
470pF
Css
22n
C13
22u
C14
22u
Vin=3V - 5.5V
R13
1
VCC
1
ISET
2
COMP
3
FSET
4
BST
12
DRVH
11
DRVL
9
AGND
7
PGND
8
PHASE
10
SS
6
VSENSE
5
U1
SC4609



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