MC34063A Datasheet, PDF (7/15 Pages) ON Semiconductor – DC-to-DC CONVERTER CONTROL CIRCUITS

MC34063A
DC-TO-DC Converter Control Circuits
TYPICAL APPLICATION(CONTINUED)
RSC
0.33Ω
Vin
C2 ⁺
100μF
8
DRC
7
Ipk
6
VCC
5
CII
R2
1.2kΩ
R1
3.6kΩ
1
SWC
2
SWE
3
TC
4
GND
C3
470pF
BYV10-40
D1
L1
220μH
+
C1
470μF
Figure 9. Step−Down Converter
For VOUT = 5V
Parameter
Line Regulation
Load Regulation
Output Ripple
Efficiency
ISC
Test Conditions
VIN = 15 to 25 V, IO = 500 mA
VIN = 25 V, IO = 50 to 500mA
VIN = 25 V, IO = 500 mA
VIN = 25 V, IO = 500mA
VIN = 25 V, Rload = 0.1 Ω
Result(Typ)
5
30
100
80
1.2
Unit
mV
mV
mV
%
A
7