MC7809E Fairchild Semiconductor, MC7809E Datasheet - Page 21
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MC7809E
Manufacturer Part Number
MC7809E
Description
Manufacturer
Fairchild Semiconductor
Datasheet
1.MC7809E.pdf
(26 pages)
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-V
IN
V
Input
Input
I
COMMON
I
O
= I
Figure 13. High Output Current with Short Circuit Protection
REG
0.33uF
1
+B
MC78XXE/LM78XXE
3
R1
R1
3
Q1
Q1 = TIP42
Q2 = TIP42
Q2
Figure 12. High Current Voltage Regulator
(I
Q1 BD536
Figure 14. Tracking Voltage Regulator
REG
TIP42
IREG
0.33uF
- V
2
R
BEO1
R
SC
1
SC
MC78XXE/LM78XXE
= I
/R
6
V
1
BEQ2
3
)
SC
4
7
I
LM741
Q1
Q1
2
0.1uF
0.33uF
+
_
3
2
MC78XXE/LM78XXE
4.7K
3
4.7K
2
COMMON
0.1uF
V
I
O
O
-V
R
MC78XXE/LM78XXE/MC78XXAE
1
0.1uF
O
3
=
I
REG
V
Output
BEQ1
- I
Q1
B
Output
Q1
21
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