參數(shù)資料
型號: SC2442ITSTRT
廠商: Semtech Corporation
英文描述: High Performance Wide Input Range Dual Synchronous Buck Controller
中文描述: 高性能寬輸入范圍的雙同步降壓控制器
文件頁數(shù): 8/10頁
文件大?。?/td> 340K
代理商: SC2442ITSTRT
8
2007 Semtech Corp.
www.semtech.com
SC2442/H
POWER MANAGEMENT
Application Information (Contd)
Fig 1) Application Circuit for 5V to 3.3V/1.8V Low Power Dual Synchronous Buck Convertor
Fig 2) Input and output rise times with full load
Input 5V
3.3V Output
1.8V Output
J2-3
C13
2.2 uF
C21
47 pF
J2-2
C16
0.22 uF
R10
5
C22
10 nF
PH1
C15
2
J2-1
U1
S
AVCC
1
BDI
2
VIN
3
OC1
4
EA1
5
FB1
6
SS1
7
BST1
8
GD1H
9
PH1
10
GD1L
11
PGND
12
PVCC
13
GD2L
14
PH2
15
GD2H
16
BST2
17
SS2
18
FB2
19
EA2
20
OC2
21
SYNC/EN
22
ROSC
23
AGND
24
R16
100R
TP2
C14
2
C8
2
C23
10 nF
R9
1
C7
2
C20
47 pF
SS1
TP3
R3
100R
R5
2R
TP1
R4
100R
C4
100 uF 4V
D1
S
R7
3.3R
R6
2R
J1-1
R17
14K
R8
3.3R
C12
2.2 uF
R15
10K
R11
40.2K
C3
100 uF 4V
J2-4
R18
34K
C17
0.1 uF
R13
100K
D2
S
C24
1 nF
R14
10K
R19
100R
C19
10 nF
C25
1 nF
R12
220K
C18
4.7 nF
RTN
RTN
RTN
BST1
PH2
BST2
VIN
C10
15 uF
C11
15 uF
VOUT2
FB2
PVCC
FB1
OC1
ENA
R1
0.075R, 1/4W
R2
0.06R, 1/4W
L1
P1166.473T
1
2
L2
P1166.223T
1
2
QB
QT
QD1
FDS6982S
1
2
3
4
5
6
7
8
QB
QT
QD2
FDS6982S
1
2
3
4
5
6
7
8
SS2
OSC
1.8V/1A
3.3V/0.6A
4.75-6V
EA1
EA2
C2
5
VOUT1
OC2
J1-2
J1-3
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參數(shù)描述
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