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SC2441ITSTRT датащи(PDF) 28 Page - Semtech Corporation

номер детали SC2441ITSTRT
подробное описание детали  Very Low Input Voltage 2-Phase Synchronous Step-down Controllers with Step-up Converter
PDF  35 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC2441ITSTRT датащи(HTML) 28 Page - Semtech Corporation

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 2005 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC2441
Application Information
Figure 19. Two independent buck converters with auxiliary boost
Figure 20. Dual-phase single output buck (current sharing) with single boost
VO1GND
C26
L1
R11
R16
R19
C31
C28
Vin: 3.3V
VO2GND
R20
R17
R9
+
C8
VO2: 2.5V/1A
+
C7
D5
D6
C20
RCS-1
R30
L3
RCS+1
R5
RCS-2
C21
RCS+2
R6
J1
= Vo 3 : 5V /0.5A
1
2
3
4
D2
Q1
C40
C29
R12
R14
Q2
C11
R15
Q5
Q6
R33
C35
R8
+
C12
R4
C3
C2
VO1: 1.2V/4A
+
C4
+
C1
C32
C27
D7
C30
R18
U1
SC2441
PH3
27
PGND
24
GDH2
19
BST2
18
FB1
11
VPN1
26
SYNC
6
CS1+
4
PVIN
28
COMP1
12
SS1/EN1
3
CS1-
5
SS2/EN2
17
COMP2
13
FB2
14
COMP3
8
CS2-
15
CS2+
16
VPN2
2
FB3
7
BST1
25
GDH1
23
GDL1
22
GDL2
20
VCC
21
Rosc
10
GND
9
IN
1
+
C5
+
C38
C33
C6
C34
C39
C19
+
C14
+
C13
C24
C22
R10
C17
VinGND
C25
+
C10
R13
+
C9
R7
D1
L2
C18
C23
R3
VO1GND
L1
C26
R11
R16
R19
C31
C28
Vin: 3.3V
VO1GND
R20
+
C8
VO1
+
C7
D5
D6
C20
RCS -1
L3
RCS +1
R5
RCS -2
C21
RCS +2
R6
J1
= Vo3: 5V/0.5A
1
2
3
4
D2
Q1
C40
C29
R12
R14
Q2
C11
Q4
R15
Q5
Q6
Q8
R33
C35
R8
+
C12
R4
C3
C2
VO1: 1.2V/20A
+
C4
+
C1
C32
D7
U1
SC2441
PH3
27
PGN D
24
GDH2
19
BST2
18
FB1
11
VPN1
26
SYN C
6
CS1+
4
PVIN
28
COMP1
12
SS1 /E N1
3
CS1-
5
SS2 /E N2
17
COMP2
13
FB2
14
COMP3
8
CS2-
15
CS2+
16
VPN2
2
FB3
7
BST1
25
GDH1
23
GD L1
22
GD L2
20
VC C
21
Rosc
10
GN D
9
IN
1
+
C5
+
C38
C33
C6
C34
C39
C19
+
C14
+
C13
C24
C22
R10
VinGND
C17
C25
+
C10
R13
+
C9
R7
D1
C18
L2
C23
R3



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