Datasheet

LT3511
20
3511fc
TYPICAL APPLICATIONS
48V to 5V Isolated Flyback Converter
48V to 15V Isolated Flyback Converter
3511 TA02
R5
69.8k
V
IN
36V TO 72V
V
OUT
+
5V
0.3A
V
OUT
–
4:1:1
D1
R1
1M
R2
43.2k
C1
1
µF
C4
22
µF
T1
300
µH
19
µH
C1: TAIYO YUDEN HMK316B7105KL-T
C3: TAIYO YUDEN EMK212B7475KG
C4: MURATA GRM32ER71C226KE18B
D1, D2: DIODES INC. SBR140S3
D3: DIODES INC. BAV21W
T1: WÜRTH 750311558
Z1: ON SEMI MMSZ5266BT1G
R4
10k
R3
169k
R6
16.9k
OPTIONAL THIRD
WINDING FOR
HV OPERATION
C2
3.3nF
C3
4.7µF
L1C
19µH
D3
Z1
D2
EN/UVLO
TC
VC GND BIAS
LT3511
V
IN
SW
R
FB
R
REF
3511 TA03
R5
97.6k
V
IN
36V TO 72V
V
OUT
+
15V
0.1A
V
OUT
–
2:1
D1
R1
1M
R2
43.2k
C1
1
µF
C4
10
µF
T1
350
µH
88
µH
R4
10k
R3
237k
R6
13k
C2
6.8nF
C3
4.7µF
D2
Z1
EN/UVLO
T
C
VC GND BIAS
LT3511
V
IN
SW
R
FB
R
REF
C1: TAIYO YUDEN HMK316B7105KL-T
C3: TAIYO YUDEN EMK212B7475KG
C4: MURATA GRM31CR71E106KA12
D1: DIODES INC. SBR0560S1
D2: DIODES INC. BAV21W
T1: WÜRTH 750311660
Z1: ON SEMI MMSZ5266BT1G