MC7818CT Fairchild Semiconductor, MC7818CT Datasheet - Page 2

• Manufacturer Part Number: MC7818CT
• Description: Linear Regulators - Standard TO-220 1A Pos Volt
• Manufacturer: Fairchild Semiconductor

Specifications of MC7818CT

• Polarity: Positive
• Number Of Outputs: 1
• Output Type: Fixed
• Output Voltage: 18 V
• Output Current: 1 A
• Line Regulation: 360 mV
• Load Regulation: 360 mV
• Dropout Voltage (max): 2 V
• Input Voltage Max: 40 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: 0 C
• Package / Case: TO-220
• Mounting Style: Through Hole
• Voltage Regulation Accuracy: 4 %
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

R18
100 k
D1
Zener
Q7
QNPN
R17
9.0 k
R1
10.66 k
R2
1.56 k
Q8
QNPN
Q6
QNPN
Q17
LAT
QNPN 2
QNPN
Q9
Q14
Q5
QNPN 2
MC7800, MC7800A, MC7800AE, NCV7800
R6
1.0 k
MC7800
Figure 1. Representative Schematic Diagram
R5
4.5 k
R11
15 k
3.0 P
C2
This device contains 22 active transistors.
Q13
QNPN
QNPN 6
http://onsemi.com
Q1
R7
14 k
LAT 3 A
Q18
R24
50
QNPN
QNPN
Q10
Q15
Q2
QNPN 4
R3
1.8 k
2
C3
QNPN
Diode
R22
100
R20
17500
Q4
Q16
N+
1.0 P
C1
30 P
R8
5.0 k
Q3
QNPN
R16
600
R9
3.0 k
QNPN
Q12
Q19
QNPN
3340-(3316ACT)
SUB
Q11 2
R21
600
R19
27.5 k
R10
D2
Zener
R14
1.0 k
R13
11660
3.0 k
6.0 k
3.0 k
R12
R25
R26
R15
680
Q20
QNPN
R23
0.2
R29
9.0 k
R28
9.0 k
R27
9.0 k
V
in
R30
18 k
V
5.01
Sense
out