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MC7812CT Datasheet(PDF) 2 Page - ON Semiconductor

Part No. MC7812CT
Description  1.0 A Positive Voltage Regulators
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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MC7800, MC7800A, NCV7805
http://onsemi.com
2
R15
680
R18
100 k
D1
Zener
R1
10.66 k
R2
1.56 k
R17
9.0 k
Q7
QNPN
LAT
Q17
Q9
QNPN 2
Q8
QNPN
Q14
QNPN
Q6
QNPN
Q5
QNPN 2
LAT 3 A
Q18
R5
4.5 k
R6
1.0 k
Q13
QNPN
Q2
QNPN 4
SUB
Q11 2
R11
15 k
QNPN 6
Q1
R7
14 k
R3
1.8 k
R8
5.0 k
Diode
Q16
Q4
QNPN
N+
C1
30 P
C2
3.0 P
R9
3.0 k
R16
600
R20
17500
Q15
QNPN
Q10
QNPN
R22
100
Q12
QNPN
R24
50
1.0 P
R21
600
R23
0.2
R19
27.5 k
D2
Zener
Q19
QNPN
R14
1.0 k
Q20
QNPN
R28
9.0 k
R27
9.0 k
R29
9.0 k
R25
6.0 k
R26
3.0 k
R12
3.0 k
R10
3340−(3316ACT)
R30
18 k
Sense
Vout
5.01
Vin
R13
11660
Q3
QNPN
MC7800
C3
Figure 1. Representative Schematic Diagram
This device contains 22 active transistors.




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