MC34063A, MC33063A, SC34063A, SC33063A, NCV33063A
8
7
S Q
R
Q2
Q1
1
2
R sc
0.24
I pk
OSC
C T
L
88 m H
V in
4.5 V to 6.0 V
100
+
6
V CC
+
-
Comp.
1.25 V
Ref
Reg
3
+
1500
pF
1N5819
5
4
R2
8.2 k
R1
953
1000 m f
+
C O
V out
-12 V/100 mA
1.0 m H
+
100
V out
Optional Filter
Test
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
Output Ripple With Optional Filter
Conditions
V in = 4.5 V to 6.0 V, I O = 100 mA
V in = 5.0 V, I O = 10 mA to 100 mA
V in = 5.0 V, I O = 100 mA
V in = 5.0 V, R L = 0.1 W
V in = 5.0 V, I O = 100 mA
V in = 5.0 V, I O = 100 mA
Results
3.0 mV = ± 0.012%
0.022 V = ± 0.09%
500 mVpp
910 mA
62.2%
70 mVpp
Figure 13. Voltage Inverting Converter
8
1
8
1
V out
7
2
V out
7
2
V in
6
3
V in
6
3 +
+
4
4
Figure 14. External Current Boost Connections for I C Peak Greater than 1.5 A
13a. External NPN Switch
13b. External PNP Saturated Switch
http://onsemi.com
8
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