LT3570 查看數據表（PDF） - Linear Technology
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LT3570 Datasheet PDF : 20 Pages
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LT3570
TYPICAL APPLICATIONS
DSL Modem
VIN
8V TO 28V
VOUT1
8V
250mA
C9
10μF
SHDN1
SHDN2
SHDN3
L1
D1 4.7μH
R1
C1
105k
10μF
R2
11.5k
10nF
R7
25k
C6
1nF
VIN1 VIN2 VIN3 BIAS
SHDN1
SHDN2
SHDN3
BOOST
SW2
SW1
FB2
SS2
VC2
FB1 LT3570
SS1
VC1
NPN_DRV
RT SYNC
R9
20.0k
FB3
GND
C8
100nF
D2
D3
L2
10μH
R8
C5
25k
10nF
C7
1nF
R3
118k
C2
22μF
R4
22.1k
VOUT2
5V
Q1
R5
34.0k
R6
10.7k
VOUT3
3.3V
500mA
C3
2.2μF
3570 TA02
“Dying Gasp” System
VIN
12V
C9
10μF
VOUT1
34V
C1
10μF
L1
D1 47μH
R1
442k
R2
10.5k
C4
10nF
C10
0.1μF VIN1 VIN2 VIN3 BIAS
SHDN1
SHDN2
SHDN3
BOOST
SW2
SW1
FB1
SS1
VC1
R7
20k
C6
1nF
FB2
SS2
VC2
LT3570
NPN_DRV
RT SYNC
R9
44.2k
FB3
GND
C8
100nF
D2
D3
L2
22μH
R8
C5
51k
10nF
C7
1nF
R3
205k
C2
22μF
R4
64.9k
VOUT2
3.3V
200mA
Q1
R5
137k
R6
64.9k
VOUT3
2.5V
200mA
C3
2.2μF
3570 TA03
18
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