MC34063A
TYPICAL APPLICATION
DC-TO-DC Converter Control Circuits
L1
170μH
R3
180Ω
RSG
0.22Ω
VIN
12V
C2 +
100μF
8
DRC
7
Ipk
6
VCC
5
CII
1
SWC
2
SWE
3
TC
4
GND
C3
1.5nF
D1
BYV10-40
VOUT
R1
2.2kΩ
R2
47kΩ
+
C3
330μF
Figure 8. Step−Up Converter
For VOUT=28V
Parameter
Line Regulation
Load Regulation
Output Ripple
Efficiency
Test Conditions
VIN = 8 to 16 V, IO = 175 mA
VIN = 12 V, IO = 75 to 175 mA
VIN = 12 V, IO = 175 mA
VIN = 12 V, IO = 175 mA
Result(Typ)
30
10
300
89
Unit
mV
mV
mV
%
6