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MC34063AM Datasheet (PDF) 8 Page - ON Semiconductor

Part number MC34063AM
Description  1.5A SWITCHING REGULATOR, 100kHz SWITCHING FREQ-MAX, PDSO8, EIAJ, PLASTIC, SO-8
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Manufacturer  ON Semiconductor
Direct Link  http://www.onsemi.com/PowerSol...
Logo ON Semiconductor

MC34063AM Datasheet (HTML) 8 Page - ON Semiconductor

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MC34063A, MC33063A
8
7
Rsc
0.24
Vin
6
4.5 V to 6.0 V +
100
5
1
SQ
R
Q2
Q1
Ipk
Osc
CT
VCC
+
- Comp.
1.25 V
Ref
Reg
2
L 88 µH
3
+ 1500
pF
4
1N5819
R1
953
R2 8.2 k
1000 µf
Vout
-12 V/100 mA
+ CO
1.0 µH
Vout
100
+
Optional Filter
Test
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
Output Ripple With Optional Filter
Conditions
Vin = 4.5 V to 6.0 V, IO = 100 mA
Vin = 5.0 V, IO = 10 mA to 100 mA
Vin = 5.0 V, IO = 100 mA
Vin = 5.0 V, RL = 0.1
Vin = 5.0 V, IO = 100 mA
Vin = 5.0 V, IO = 100 mA
Figure 11. Voltage Inverting Converter
Results
3.0 mV = ±0.012%
0.022 V = ±0.09%
500 mVpp
910 mA
62.2%
70 mVpp
8
7
Vin
6
1
8
2
Vout
7
Vin
6
1
Vout
2
Figure 12. External Current Boost Connections for IC Peak Greater than 1.5 A
12a. External NPN Switch
12b. External PNP Saturated Switch
http://onsemi.com
8

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