FSP3601 Datasheet, PDF (9/14 Pages) FOSLINK SEMICONDUCTOR CO.,LTD – STEP-UP DC/DC CONTROLLER

„ APPLICATION NOTE (1)
STEP-UP DC/DC CONTROLLER
FSP3601
Vin+12V
C7
220µF/25V
U1
1 _FB
COMP ⁸
2 _SCP
OSC ⁷
3 _VCC
GND ⁶
C5
0.1µF
4 _BR/CTL
OUT ⁵
R4
FSP3601
390
Q1
R5
2N3904
3K
Control R7 4.7K
L1 20µH D1 SCD34
C1
0.1µF
R3 10
Q2
R1 R2
47K
1%
C2
C8
0.1µF
C6
R6
470PF
1K
1%
Vout+24V/1A
C4
100µF/35V
Figure 14.DC 12V to DC 24V Boost Regulator
Vin+2.5V∽+6V
C7
220µF/25V
U1
1 _FB
COMP ⁸
2 _SCP
OSC ⁷
3
VCC
6
GND
C5
0.1µF
4 _BR/CTL
OUT ⁵
R4
FSP3601
390
Q1
R5
2N3904
3K
L1 20µH C9 10µF D1 SCD34
C1
0.1µF
R3 10
Q2
L2
20µH
R1 R2
5.6K
1%
C2
C8
0.1µF
C6
R6
1K
470PF
1%
Control R7 4.7K
Figure15. DC2.5V∽DC6V to DC3.3V SEPIC Regulator
Vout+3.3V
C4
100µF/35V
9/14
2007-6-6