Datasheet

LT3512
20
3512fb
Typical applicaTions
48V to 5V Isolated Flyback Converter
3512 TA03
R5
97.6k
V
IN
36V TO 72V
V
OUT
+
15V
0.2A
V
OUT
–
2:1
D1
R1
1M
R2
43.2k
C1
1
µF
C4
22
µF
T1
200
µH
50
µH
R4
10k
R3
243k
R6
18.7k
C2
4.7nF
C3
4.7µF
D2
Z1
EN/UVLO
T
C
VC GND BIAS
LT3512
V
IN
SW
R
FB
R
REF
C1: TAIYO YUDEN HMK316B7105KL-T
C3: TAIYO YUDEN EMK212B7475KG
C4: MURATA GRM32ER71E226KE15B
D1: DIODES INC. DFLS160
D2: DIODES INC. DFLS1200
T1: SUMIDA 10396-T023
Z1: ON SEMI MMSZ5266BT1G
48V to 15V Isolated Flyback Converter
48V to 24V Isolated Flyback Converter
3512 TA04
R5
162k
V
IN
36V TO 72V
V
OUT
+
24V
110mA
V
OUT
–
1:1
D1
R1
1M
R2
43.2k
C1
1
µF
C4
10
µF
T1
151
µH
151
µH
R4
10k
R3
187k
R6
24.3k
C2
2.2nF
C3
4.7µF
D2
Z1
EN/UVLO
T
C
VC GND BIAS
LT3512
V
IN
SW
R
FB
R
REF
C1: TAIYO YUDEN HMK316B7105KL-T
C3: TAIYO YUDEN EMK212B7475KG
C4: TAIYO YUDEN UMK316AB7475KL-T
D1: DIODES INC. SBR1U150SA
D2: DIODES INC. DFLS1200
T1: WÜRTH 750311662
Z1: ON SEMI MMSZ5266BT1G
3512 TA02
R5
57.6k
V
IN
36V TO 72V
V
OUT
+
5V
0.5A
V
OUT
–
4:1:1
D1
R1
1M
R2
43.2k
C1
1
µF
C4
47
µF
T1
175
µH
11
µH
C1: TAIYO YUDEN HMK316B7105KL-T
C3: TAIYO YUDEN EMK212B7475KG
C4: TAIYO YUDEN LMK325B7476MM-TR
D1: DIODES INC. SBR2A40P1
D2: CENTRAL SEMI CMDSH-3
D3: DIODES INC. DFLS1200
T1: WÜRTH 750311559
Z1: ON SEMI MMSZ5266BT1G
R4
10k
R3
169k
R6
12.7k
OPTIONAL THIRD
WINDING FOR
HV OPERATION
C2
4.7nF
C3
4.7µF
L1C
11µH
D3
Z1
D2
EN/UVLO
TC
VC GND BIAS
LT3512
V
IN
SW
R
FB
R
REF