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SC4624AEVB-MLPQ Datasheet(PDF) 17 Page - Semtech Corporation

Part # SC4624AEVB-MLPQ
Description  Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator
PDF  19 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4624AEVB-MLPQ Datasheet(HTML) 17 Page - Semtech Corporation

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 2008 Semtech Corp.
www.semtech.com
SC4624A
POWER MANAGEMENT
Operation
Application Information (Cont.)
Application Information (Cont.)
5V
IN, 1VOUT, 4A, all ceramic capacitors ( application circuit #1 )
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
1Vout@4A
5Vin
Note: (1,2) Option for stability
(2)
VIN=5V; Vout=1V/4A
Input(C9)/Output Capacitors(C4): Panasonic ECJ33YBOJ226M(22uF/6.3V)
L1: TOKO D104C(919AS-1R8N)
Switching Frequency=550kHz
R12: Multilayer chip inductors;
MLB-160808-0600R-S2
R9
28.7k
R9
28.7k
R11
47.5k
R11
47.5k
C5
opt
C5
opt
C3
1uF
C3
1uF
C8
270pF
C8
270pF
R6
10k
R6
10k
U1
SC4624A
U1
SC4624A
COMP
10
FB
11
PGOOD
6
SYNC/EN
9
VCC
7
SS
4
NC
20
NC
8
FS
5
AGND
13
VCC
12
PH
16
PH
17
PH
18
NC
19
ISET
3
PVIN
1
PVIN
2
PGND
15
PGND
14
R2
10R
R2
10R
C7
47nF
C7
47nF
R4
opt
R4
opt
R1
20k
R1
20k
C9
22uF
C9
22uF
R8
2.32k
R8
2.32k
C2
390pF
C2
390pF
C11
opt
C11
opt
R12
MLB-160808-0600R-S2
R12
MLB-160808-0600R-S2
R7
28.7k
R7
28.7k
R5
10k
R5
10k
R10
0R
R10
0R
C1 2.2pF
C1 2.2pF
C4
22uF
C4
22uF
C6
1nF
C6
1nF
R3
30k
R3
30k
L1
1.8uH
L1
1.8uH



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