UNIVERSAL DC/DC CONVERTER
FSP34063
(3) Voltage Inverting Converter
8
1
S
R
Q
Q2
Q1
7
2
Ipk
Rsc
0.26
CT
Oscillator
IN5819
100µH
6
3
Vin
4.5V to 6.0V
Vcc Comparator
470µF
1.25V
Reference
Regulator
+
680
pF
-
5
4
1.0µH
Vout
-12V/100mA
Co
Vout
100
R1 3k
470µF
R2 50k
Optional Filter
Test
Conditions
Results
Line Regulation
Load Regulation
Output Ripple
Efficiency
Vin=4.5V to 6.0V, IO=100mA
Vin=5.0V, IO=20mA to 100mA
Vin=5.0V, IO=100mA
20mV=0.08%
30mV=0.12%
500mVPP
60%
Vin=5.0V, IO=100mA
2007-1-25
5/10