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SC1146CSW 数据表(PDF) 6 Page - Semtech Corporation

部件名 SC1146CSW
功能描述  VRM9.0 PROGRAMMABLE, MULTI-PHASE, HIGH PERFORMANCE PWM CONTROLLER
PDF  10 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC1146CSW 数据表(HTML) 6 Page - Semtech Corporation

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EN
EN
VOUT
EN
SMOD
+12V
ENSYN
Power Good
sel
R22
10K
R20
R6
10K
10
R1
open
R24
R5
10K
TBD
R18
100
R19
0
R17
0
R2
0
R23
0
R3
0
R12
0
R14
0
R16
TBD
R27
0
R26
0
R10
22
R9
22
R11
22
R13
R7
10K
22u,10V
C20
22u,10V
C21
1
R21
22u,10V
C24
2.2
R25
J1
INPUT
1
2
3
4
5
6
S1
Vout/Clk switch
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
22u,10V
C17
22u,10V
C15
C12
22u,10V
C10
U5
SC1405B
13
4
3
2
1
14
6
5
10
7
9
11
12
8
TG
CO
GND
EN
OVP_S
BST
DELAY_C
S_MOD PGND
PRDY
BG
DSPS_DR
DRN
Vcc
10u,16V
C19
10u,16V
C36
U3
SC1405B
13
4
3
2
1
14
6
5
10
7
9
11
12
8
TG
CO
GND
EN
OVP_S
BST
DELAY_C
S_MOD PGND
PRDY
BG
DSPS_DR
DRN
Vcc
C11
D6
30BQ015
D7
30BQ015
D1
SS12
D3
SS12
D4
SS12
22u,10V
C25
22u,10V
C30
22u,10V
C29
FDB7030
Q4
FDB7030
Q6
FDB7030
Q8
D2
SS12
U1
SC1405B
13
4
3
2
1
14
6
5
10
7
9
11
12
8
TG
CO
GND
EN
OVP_S
BST
DELAY_C
S_MOD PGND
PRDY
BG
DSPS_DR
DRN
Vcc
U4
SC1405B
13
4
3
2
1
14
6
5
10
7
9
11
12
8
TG
CO
GND
EN
OVP_S
BST
DELAY_C
S_MOD PGND
PRDY
BG
DSPS_DR
DRN
Vcc
22u,10V
C33
22u,10V
C34
22u,10V
C6
22u,10V
C1
22u,10V
C38
R4
10K
D5
30BQ015
FDB7030
Q2
FDP6035
Q1
10u,16V
C28
FDP6035
Q3
FDP6035
Q5
FDP6035
Q7
PID1103-1u
L1
PID1103-1u
L3
PID1103-1u
L5
C43
.001
.1u
C42
.1u C40
.1u
C22
C8
.01
C45
47pf
C44
47pf
C16
47pf
C37
.1
C46
47pf
C26
C13
.1
C48
.1u
C9
.1u
C31
1000uf,6.3
C39
.1u
C18
.1u
C35
.1u
C47
.1u
C27
0
R28
0
R29
0
R30
0
R31
.1u
C49
22
R8
3k
R32
10K
R33
.1u C50
1000uf,6.3
C51
D8
30BQ015
PID1103-1u
L7
JMP1
JMP2
SC1146
U2
12
9
2
3
1
13
7
5
6
11
14
4
10
15
16
17
18
19
20
21
22
23
24
8
OC-
Vid3
Divsel
Clksel
5v
Comp
Vid1
Rref
Vid0
OC+
FB
Extclk
Vid4
Bgout
FBG
Enable
GND
Drv2
Drv0
Vcc2
Drv1
Drv3
Pwrgood
Vid2
Open
R15
Long PCB Trace
*
*
R26 AND R27 SET THE OVERVOLTAGE TRIP
POINT.
C48 SETS THE TIME CONSTANT.
R27=0,R26=OPEN to disable OVP_S.
BY JUMPERING JMP1, ALL SC1405'S ARE ENABLED AND
DISABLED TOGETHER WITH SC1144.
THREE OF THE SC1405'S
CAN BE DIRECTLY CONTROLLED BY SEPARATING THE TWO
ENABLES. (power saving mode)
Shipped with OVP_S disabled
Freq. set by R22
Freq.=(8.2K/R22)*2Mhz
per
Phase



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