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MC34063A 데이터 시트보기 (PDF) - Analog Intergrations
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MC34063A
Industrial Standard, Universal DC/DC Converter
Analog Intergrations
MC34063A Datasheet PDF : 10 Pages
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MC34063A
n
APPLICATION EXAMPLES
RS
0.25
V
IN
10~20V
+
C1
100
µ
F
8
DRI
7
IPK
6
VCC
5
FB
SC
1
SE
2
3
TC
4
GND
MC34063A
200
µ
H
L
+
D1
1N5821
C
O
470
µ
F
V
OUT
5V/500mA
470pF
CT
RB
3K6
RA
1K2
Line Regulation
Load Regulation
Short Circuit Current
V
IN
= 10V ~20V @ I
O
=500mA
V
IN
= 15V, @ I
O
=10mA ~ 500mA
V
IN
=15V, @ R
L
= 0.1
Ω
Fig. 1 Step-Down Converter
40mV
5mV
1.3A
RS
V
IN
0.22
10~22V
+
C1
100
µ
F
8
DRI
7
IPK
6
VCC
5
FB
SC
1
2
SE
3
TC
4
GND
MC34063A
R1
1K
R2
Q1
470
200
µ
H
D1
CT
470pF
L
1N5821
+
Co
470
µ
F
V
OUT
5V/500mA
RA
RB
1K2
3K6
Fig. 2 Step-Down Converter with External PNP Saturation Switch
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