Datasheet

LT3512
22
3512fb
12V to ±70V Isolated Flyback Converter
3512 TA07
R5
1M
V
IN
10V TO 20V
V
OUT1
+
70V
7mA
V
OUT1
–
1:5:5
D1
R1
1M
R2
562k
C1
2.2
µF
C4
0.47µF
C5
0.47µF
T1
100
µH
R4
10k
R3
100k
R7
3k
C6
10pF
R6
24.9k
C2
6.8nF
C3
4.7µF
D3
Z1
V
OUT2
+
7mA
V
OUT2
–
–70V
D2
EN/UVLO
T
C
VC GND BIAS
LT3512
V
IN
SW
R
FB
R
REF
C1: TAIYO YUDEN UMK316AB7475KL-T
C3: TAIYO YUDEN EMK212B7475KG
C4, C5: NIPPON CHEMI-CON KTS251B474M43N0T00
D1, D2: DIODES INC. ES1G
D3: DIODES INC. DFLS1150
T1: WÜRTH 750311692
Z1: ON SEMI MMS2527OBT1G
R8
3k
C7
10pF
Typical applicaTions
3512 TA08
R5
107k
V
IN
8V TO 20V
V
OUT
+
15V
70mA
V
OUT
–
2:1
D1
OPTIONAL
MINIMUM LOAD
R1
1M
R2
562k
C1
4.7
µF
C4
10
µF
T1
150
µH
38
µH
R4
10k
R3
237k
R6
21.5k
C2
6.8nF
C3
4.7µF
D2
Z1
Z2
EN/UVLO
T
C
VC GND BIAS
LT3512
V
IN
SW
R
FB
R
REF
C1: TAIYO YUDEN UMK316AB7475KL-T
C3: TAIYO YUDEN EMK212B7475KG
C4: MURATA GRM32ER7IE226K
D1: DIODES INC. SBR2A40P1
D2: DIODES INC. DFLS1150
T1: WÜRTH 750311661
Z1: ON SEMI MMSZ5270BT1G
12V to 15V Isolated Flyback Converter