SC2442H Semtech Corporation, SC2442H Datasheet - Page 8
SC2442H
Manufacturer Part Number
SC2442H
Description
High Performance Wide Input Range Dual Synchronous Buck Controller
Manufacturer
Semtech Corporation
Datasheet
1.SC2442H.pdf
(10 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SC2442HITSTRT
Manufacturer:
MAXM
Quantity:
4 806
Fig 2) Input and output rise times with full load
© 2007 Semtech Corp.
POWER MANAGEMENT
Application Information (Contd)
C16
C17
R11
J1-2
J1-3
15 uF
J1-1
C11
ENA
C10
15 uF
0.22 uF
VIN
0.1 uF
40.2K
Fig 1) Application Circuit for 5V to 3.3V/1.8V Low Power Dual Synchronous Buck Convertor
RTN
R9
TP1
R10
SS1
OSC
SS2
4.75-6V
C2
PVCC
C7
C8
R12
220K
C20
FB1
13
18
23
19
20
22
3
2
1
7
6
5
47 pF
10 nF
R1
R2
C22
C23
4.7 nF
VIN
BD I
AVCC
P VC C
S S 1
S S 2
ROS C
FB1
E A1
FB2
E A2
S YN C /E N
C18
10 nF
0.06R, 1/4W
0.075R, 1/4W
EA1
100R
U1
1.8V Output
3.3V Output
G D 1H
G D 2H
P G ND
AG ND
G D 1L
G D 2L
BS T 1
BS T 2
P H 1
P H 2
OC 1
OC 2
R3
OC2
OC1
R13
100K
100R
Input 5V
R4
4
21
9
11
16
14
10
8
15
17
12
24
C21
C19
10 nF
47 pF
D1
EA2
D2
8
PH1
BST1
PH2
BST2
FB2
R7
R6
R5
FDS6982S
FDS6982S
3.3R
2R
2R
QD1
QD2
R8
3.3R
C12
C13
Q B
Q B
•
•
8
1
8
1
2.2 uF
2.2 uF
•
•
7
2
7
2
•
•
•
•
6
3
6
3
5
4
5
4
Q T
Q T
TP2
1
1
L1
TP3
L2
RTN
100 uF 4V
100 uF 4V
R16
100R
1 nF
P1166.473T
RTN
P1166.223T
www.DataSheet4U.com
2
2
C24
R14
14K
R17
10K
C3
C4
SC2442/H
1.8V/1A
3.3V/0.6A
VOUT1
VOUT2
C14
C15
www.semtech.com
R18
34K
R15
10K
C25
100R
1 nF
R19
J2-1
J2-2
J2-4
J2-3