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SC4624SETRT Folha de dados(PDF) 17 Page - Semtech Corporation

Nome de Peças SC4624SETRT
Descrição Electrónicos  Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator
PDF  20 Pages
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Fabricante Electrônico  SEMTECH [Semtech Corporation]
Página de início  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4624SETRT Folha de dados(HTML) 17 Page - Semtech Corporation

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 2007 Semtech Corp.
www.semtech.com
SC4624
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
5Vin
1Vout@4A
Title
Size
Document Number
Rev
Date:
Sheet
of
A2
Custom
1
1
Monday, June 25, 2007
Title
Size
Document Number
Rev
Date:
Sheet
of
A2
Custom
1
1
Monday, June 25, 2007
Title
Size
Document Number
Rev
Date:
Sheet
of
A2
Custom
1
1
Monday, June 25, 2007
SC4624
Application
Circuit
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
(1)
(2)
Note: (1,2) Option for stability
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
SC4624
U1
SC4624
COMP
10
FB
11
PGOOD
6
SYNC/EN
14
VCC
5
SS
3
NC
9
NC
7
FS
4
AGND
13
VCC
12
PH1
17
PH2
18
PH3
19
NC
8
ISET
2
PVIN1
1
PVIN2
20
PGND1
15
PGND2
16
C11
opt
C11
opt
R2
10R
R2
10R
C7
47nF
C7
47nF
R12
MLB-160808-0600R-S2
R12
MLB-160808-0600R-S2
R1
20k
R1
20k
C9
22uF
C9
22uF
R8
2.32k
R8
2.32k
C2
390pF
C2
390pF
R7
28.7k
R7
28.7k
R5
10k
R5
10k
C1
2.2pF
C1
2.2pF
C4
22uF
C4
22uF
R4
opt
R4
opt
C6
1nF
C6
1nF
R3
30k
R3
30k
L1
1.8uH
L1
1.8uH



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