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MC7812CT Datasheet(PDF) 15 Page - ON Semiconductor

Part No. MC7812CT
Description  1.0 A Positive Voltage Regulators
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
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MC7812CT Datasheet(HTML) 15 Page - ON Semiconductor

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MC7800, MC7800A, NCV7805
http://onsemi.com
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ELECTRICAL CHARACTERISTICS (Vin = 27 V, IO = 500 mA, TJ = Tlow to Thigh (Note 24), unless otherwise noted)
MC7818B
MC7818C
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (TJ = 25°C)
VO
17.3
18
18.7
17.3
18
18.7
Vdc
Output Voltage (5.0 mA
≤ IO ≤ 1.0 A, PD ≤ 15 W)
VO
Vdc
21 Vdc
≤ Vin ≤ 33 Vdc
17.1
18
18.9
22 Vdc
≤ Vin ≤ 33 Vdc
17.1
18
18.9
Line Regulation, (Note 25)
Regline
mV
21 Vdc
≤ Vin ≤ 33 Vdc
9.5
360
9.5
50
24 Vdc
≤ Vin ≤ 30 Vdc
3.2
180
3.2
25
Load Regulation, (Note 25)
Regload
2.0
360
2.0
55
mV
5.0 mA
≤ IO ≤ 1.5 A
Quiescent Current
IB
3.5
8.0
3.5
6.5
mA
Quiescent Current Change
DIB
mA
21 Vdc
≤ Vin ≤ 33 Vdc
1.0
5.0 mA
≤ IO ≤ 1.0 A
0.5
0.5
Ripple Rejection
RR
57
53
57
dB
22 Vdc
≤ Vin ≤ 33 Vdc, f = 120 Hz
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
ViI − VO
2.0
2.0
Vdc
Output Noise Voltage (TA = 25°C)
Vn
10
10
mV/VO
10 Hz
≤ f ≤ 100 kHz
Output Resistance f = 1.0 kHz
rO
1.3
1.3
m
W
Short Circuit Current Limit (TA = 25°C)
ISC
0.2
0.2
A
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Imax
2.2
2.2
A
Average Temperature Coefficient of Output Voltage
TCVO
−1.5
−1.5
mV/
°C
24. Tlow =0°C for MC78XXAC, C
Thigh = +125°C for MC78XXAC, C, NCV7805
=
*40°C for MC78XXB, MC78XXAB, NCV7805
25. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.


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