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SC4605IMSTRT Datasheet(PDF) 12 Page - Semtech Corporation

Part # SC4605IMSTRT
Description  Low Input, High Efficiency Synchronous, Step Down Controller
PDF  19 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4605IMSTRT Datasheet(HTML) 12 Page - Semtech Corporation

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 2004 Semtech Corp.
www.semtech.com
SC4605
POWER MANAGEMENT
Design Example 1: 3.3V to 1.5V @ 12A application with SC4605 (NH020 footprint)
Figure 5. Schematic for 3.3V/1.5V@12A with SC4605 application
Applications Information (Cont.)
Figure 6. Schematic for 5V/1.5V@12A with SC4605 application
Design Example 2: 5V to 1.5V @ 12A application with SC4605 (NH020 footprint)
R3
2.26k
C3
4.7u
C2 2.2n
R1
14.3k
C6
150u
C7
150u
ON/OFF
C1
180p
R11
100
C14
0.1u
ON/OFF
R6
1.0
R5
1.0
J1
1
2
3
4
5
6
D2
L1
1.8u
C5
22u
C4
22u
C71
1u
M1
C10
330u
M2
C12
22u
+VIN
C9
4.7n
R8
200
R7
10k
R9
11.5k
C20
470pF
R10
100
+VOUT
J2
1
2
3
4
5
R12
100
GND
TRIM
U1
SC4605
VCC
2
ISET
3
COMP
4
FSET
5
BST
1
DRVH
10
DRVL
8
VSENSE
6
GND
7
PHASE
9
R13
1
R3
2.26k
C3
4.7u
C2 2.2n
R1
14.3k
C6
150u
C7
150u
ON/OFF
C1
180p
R11
100
C14
0.1u
ON/OFF
R6
1.0
R5
1.0
J1
1
2
3
4
5
6
D2
L1
1.8u
C5
22u
C4
22u
C71
1u
M1
C10
330u
M2
C12
22u
+VIN
C9
4.7n
R8
200
R7
10k
R9
11.5k
C20
470pF
R10
100
+VOUT
J2
1
2
3
4
5
R12
100
GND
TRIM
U1
SC4605
VCC
2
ISET
3
COMP
4
FSET
5
BST
1
DRVH
10
DRVL
8
VSENSE
6
GND
7
PHASE
9
R13
1
R3
2.8k
C3
4.7u
C2 2.2n
C6
150u
R1
14.3k
C7
150u
R11
100
C1
180p
ON/OFF
C14
0.1u
ON/OFF
R6
1.0
R5
1.0
J1
1
2
3
4
5
6
D2
L1
1.8u
C5
22u
C4
22u
C71
1u
M1
C10
330u
M2
C12
22u
+VIN
C9
4.7n
R8
200
R7
10k
R9
11.5k
C20
470pF
R10
100
+VOUT
J2
1
2
3
4
5
R12
100
GND
TRIM
U1
SC4605
VCC
2
ISET
3
COMP
4
FSET
5
BST
1
DRVH
10
DRVL
8
VSENSE
6
GND
7
PHASE
9
R13
1
R3
2.8k
C3
4.7u
C2 2.2n
C6
150u
R1
14.3k
C7
150u
R11
100
C1
180p
ON/OFF
C14
0.1u
ON/OFF
R6
1.0
R5
1.0
J1
1
2
3
4
5
6
D2
L1
1.8u
C5
22u
C4
22u
C71
1u
M1
C10
330u
M2
C12
22u
+VIN
C9
4.7n
R8
200
R7
10k
R9
11.5k
C20
470pF
R10
100
+VOUT
J2
1
2
3
4
5
R12
100
GND
TRIM
U1
SC4605
VCC
2
ISET
3
COMP
4
FSET
5
BST
1
DRVH
10
DRVL
8
VSENSE
6
GND
7
PHASE
9
R13
1



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