SC2441ITSTRT View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
SC2441ITSTRT
Semtech Corporation
SC2441ITSTRT Datasheet PDF : 35 Pages
| |||
SC2441
POWER MANAGEMENT
Application Information
VinGND
V in : 3.3V
J1
= V o 3: 5V /0.5A
4
3
2
1
VO1: 1.2V/4A
C22 C24
VO1GND
D2
C14 C13 C12
++
+
C17
L1
C23
C21
R6
R11
RCS+2
C39
RCS-2
R16
C4+ C3
D7
R13
R19
R33
C34
Q1
Q2
C28
C31
C11
+ C7 C6+ C5 C38
+
C35
L3
D6
1 IN
27 PH3
21 VCC
R4
25 BST1
23 GDH1
FB3 7
COMP3 8
PVIN 28
BST2 18
GDH2 19
R8
22 GDL1
GDL2 20
24 PGND
26 VPN1
VPN2 2
4 CS1+
CS2+ 16
5 CS1-
CS2- 15
11 FB1
FB2 14
12 COMP1
COMP2 13
10 Rosc
SYNC 6
R20
9 GND
SS1/EN1 3
U1
SS2/EN2
17
C33
SC2441
R14
R15
C40
C1+
C2
D1
C29
R12
R3
R7
C18
Q5
L2
Q6
D5
C19
R5
C20
R10
RCS+1
C27
C30
R18
RCS-1
R30
C32
C8
+
C10
+
C9
+
VO2: 2.5V/1A
C25
C26
R9
VO2GND
R17
Figure 19. Two independent buck converters with auxiliary boost
VinGND
Vin: 3.3V
J1
= Vo3: 5V/0.5A
4
3
2
1
VO1: 1.2V/20A
C 22 C 24
VO1GND
C 14 C 13 C 12
+
+
+
D2
C 17
L1
C 23
C 21
R6
R 11
R CS +2
C 39
R CS -2
R 16
R 33
C4 +
C3
R 14
C 11
+ C7 C6+ C5
C 38
+
R 15
C 40
C 35
C 34
L3
D6
1 IN
27 P H3
F B3 7
COMP3 8
C 29
R 12
21 VC C
PVIN 28
Q1
R4
25 BST1
23 G DH1
BST2 18
R3
Q5
G DH2 19
D7
R 13
Q2
Q4
C 28
R 19
C 31
R8
22 GD L1
GD L2 20
24 P GN D
26 VPN1
VPN2 2
4 CS1+
CS2+ 16
5 CS1-
CS2- 15
11 F B1
F B2 14
12 COMP1
COMP2 13
R7 Q6
10 Rosc
S YN C 6
R 20
9 GN D
SS1 /E N1 3
U1
SS2 /E N2
17
C 33
C 32
SC2441
C1 +
C2
D1
C8
+
C 10
+
C9
+
C 18
L2
Q8
D5
C 19
R5
C 20
R 10
R CS +1
R CS -1
VO1
C 25
C 26
VO1GND
Figure 20. Dual-phase single output buck (current sharing) with single boost
2005 Semtech Corp.
28
www.semtech.com
Share Link: 