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MC7812CT Datasheet(PDF) 10 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
10
ELECTRICAL CHARACTERISTICS (Vin = 15 V, IO = 1.0 A, TJ = 0°C to 125°C, unless otherwise noted)
Characteristic
Symbol
MC7809AC
Unit
Min
Typ
Max
Output Voltage (TJ = 25
°C)
VO
8.82
9.0
9.18
Vdc
Output Voltage (5.0 mA
≤ IO ≤ 1.0 A, PD ≤ 15 W)
11.5 Vdc
≤ Vin ≤ 24 Vdc
VO
8.65
9.0
9.35
Vdc
Line Regulation (Note 15)
11.5 Vdc
≤ Vin ≤ 26 Vdc, IO = 500 mA
12 Vdc
≤ Vin ≤ 17 Vdc, IO = 1.0 A
11.5 Vdc
≤ Vin ≤ 24 Vdc, TJ = 25°C
Regline
6.2
1.8
5.2
16
7.0
16
mV
Load Regulation (Note 15)
5.0 mA
≤ IO ≤ 1.5 A, TJ = 25°C
5.0 mA
≤ IO ≤ 1.0 A
250 mA
≤ IO ≤ 750 mA
Regload
25
25
15
mV
Quiescent Current
IB
3.3
6.0
mA
Quiescent Current Change
11.5 Vdc
≤ Vin ≤ 26 Vdc, IO = 500 mA
11.5 Vdc
≤ Vin ≤ 24 Vdc, IO = 1.0 A, TJ = 25°C
5.0 mA
≤ IO ≤ 1.0 A
DIB
0.8
0.8
0.5
mA
Ripple Rejection
11.5 Vdc
≤ Vin ≤ 21.5 Vdc, f = 120 Hz, IO = 500 mA
RR
56
61
dB
Dropout Voltage (IO = 1.0 A, TJ = 25
°C)
VI _ VO
2.0
Vdc
Output Noise Voltage (TA = 25
°C)
10 Hz
≤ f ≤ 100 kHz
Vn
10
mV/VO
Output Resistance f = 1.0 kHz
rO
1.0
m
W
Short Circuit Current Limit (TA = 25
°C)
Vin = 35 Vdc
ISC
0.2
A
Peak Output Current (TJ = 25
°C)
Imax
2.2
A
Average Temperature Coefficient of Output Voltage
TCVO
−0.5
mV/
°C
15. 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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