LT3757 LINER [Linear Technology], LT3757 Datasheet - Page 32

• Manufacturer Part Number: LT3757
• Description: Boost, Flyback, SEPIC and Inverting Controller
• Manufacturer: LINER [Linear Technology]

LT3757
Typical applicaTions

5V TO 12V
V
IN
+
5V TO 16V
D1, D2: MBRS140T3
T1: COILTRONICS VP1-0076 (*PRIMARY = 4 WINDINGS IN PARALLEL)
M1: SILICONIX/VISHAY Si4840BDY
30.9k
400kHz
C
47µF
16V
IN2
V
IN
63.4k
200kHz
C
1µF
16V, X5R
0.1µF
IN1
C
22µF
25V, X5R
IN
2
0.1µF
105k
46.4k
100pF
R2
105k
R1
46.4k
100pF
SHDN/UVLO
SYNC
RT
SS
VC
5V to 12V Input, ±12V/0.2A Output SEPIC Converter
22k
SHDN/UVLO
SYNC
RT
SS
VC
6.8nF
LT3757
9.1k
GND INTV
V
10nF
IN
LT3757
V
GND INTV
IN
Nonisolated Inverting SLIC Supply
SENSE
GATE
FBX
CC
SENSE
GATE
C
4.7µF
10V
X5R
FBX
CC
VCC
15.8k
C
4.7µF
10V, X5R
VCC
•
M1
VP5-0155 (PRIMARY = 3 WINDINGS IN PARALLEL)
0.02
T1
1,2,3,4
0.012
0.5W
M1
Si7850DP
C2
10µF
50V
X5R
16V, X5R
4.7µF
C
DC1
1,2,3
464k
T1
C
4.7µF
16V
X5R
•
DC2
•
•
•
4
5
6
DFLS160
DFLS160
DFLS160
•
D1
D2
D3
D2
5
D1
6
3757 TA06
C4
22µF
25V
X5R
C5
22µF
25V
X5R
C3
22µF
25V
X5R
3757 TA07
1.05k
1%
158
1%
C
3.3µF
100V
OUT
C
4.7µF
16V, X5R
C
4.7µF
16V, X5R
OUT2
3
V
–24V
200mA
V
–72V
200mA
OUT2
3
GND
OUT1
OUT1
GND
V
12V
0.4A
V
–12V
0.4A
OUT1
OUT2
3757fb