LT3573
Typical Applications
Low Input Voltage 5V Isolated Flyback Converter
VIN
5V
C1
10µF
R1
200k
R2
90.9k
VIN
SHDN/UVLO
LT3573
RFB
RREF
TC
D1
3:1
C6
0.22µF
R8
2k
T1
24µH
2.6µH
D2
R3
80.6k
R4
6.04k
VOUT+
5V, 350mA
C5
47µF
VOUT–
RILIM
SW
SS
VC
GND TEST BIAS
R6
R5
28.7k 10k
C2
10nF
R7
57.6k
C3
1000pF
3573 TA02
VIN T1: PULSE PA2454NL OR WÜRTH ELEKTRONIK 750310471
D1: B340A
D2: 1N4148
C5: MURATA, GRM32ER71A476K
±12V Isolated Flyback Converter
VIN
5V
C1
10µF R1
200k
R2
90.9k
VIN
SHDN/UVLO
LT3573
RFB
RREF
TC
D1
2:1:1
C6
R8 T1
0.22µF 2k 43.6µH
10.9µH
D3
R3
118k
R4
6.04k
D2
10.9µH
VOUT
+
1
12V, 100mA
C5
47µF
VOUT
–
1
VOUT
+
2
C6
47µF
VOUT
–
2
–12V, 100mA
RILIM
SW
SS
VC
GND TEST BIAS
R6
R5
59k 10k
R7
56.2k
C2
C3
10nF
3300pF
VIN
T1: COILTRONICS VPH1-0076-R
D1, D2: B240A
D3: 1N4148
C5, C6: MURATA, GRM32ER71A476K
3573 TA03
3573fb
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