Diodes AP34063 - Manual (Page 4)

AP34063
Document number: DS31004 Rev. 6 - 2
4 of 11
www.diodes.com
September 2012
© Diodes Incorporated
AP34063
Typical Applications Circuit
(cont.)
(3) Voltage Inverting Converter
1.25V
Ref
Reg
I pk
C T
R
S Q
Q2
Q1
Comp.
+
_
8
7
6
5
1
2
3
4
V C
C
Osc
+
470uF
V in
4.5V to 6.0V
R sc
0.26
R2 50k 3k
R1
C O
-12V/100mA
V out
100
V out
Optional Filter
680
pF
L
B240
470uF
1.0uH
+
100
uH
+ +
Test Conditions Results
Line Regulation V
IN
= 4.5V to 6.0V, I
O
= 100mA 20mV = ±0.08%
Load Regulation V
IN
= 5.0V, I
O
= 20mA to 100mA 30mV = ±0.12%
Output Ripple V IN = 5.0V, I O = 100mA 500mV PP
Efficiency V
IN
= 5.0V, I
O
= 100mA 60%