Datasheet

MC34063A, MC33063A, NCV33063A
http://onsemi.com
8
1.25 V
Ref
Reg
V
out
−12 V/100 mA
V
out
1.0 mH
+
100
Optional Filter
8
7
R
sc
0.24
6
V
in
4.5 V to 6.0 V
100
+
5
R2 8.2 k
SQ
R
Q2
Q1
I
pk
OSC
C
T
Comp.
R1
953
1
2
3
4
+
1500
pF
+
−
1N5819
1000 mf
+
88 mH
V
CC
C
O
L
Test Conditions Results
Line Regulation V
in
= 4.5 V to 6.0 V, I
O
= 100 mA 3.0 mV = ± 0.012%
Load Regulation V
in
= 5.0 V, I
O
= 10 mA to 100 mA 0.022 V = ±0.09%
Output Ripple V
in
= 5.0 V, I
O
= 100 mA 500 mVpp
Short Circuit Current
V
in
= 5.0 V, R
L
= 0.1 W
910 mA
Efficiency V
in
= 5.0 V, I
O
= 100 mA 62.2%
Output Ripple With Optional Filter V
in
= 5.0 V, I
O
= 100 mA 70 mVpp
Figure 12. Voltage Inverting Converter
13a. External NPN Switch 13b. External PNP Saturated Switch
8
7
6
V
in
1
2
V
out
8
7
6
V
in
1
2
V
out
Figure 13. External Current Boost Connections for I
C
Peak Greater than 1.5 A