MC78XX Datasheet, PDF (19/28 Pages) Fairchild Semiconductor – 3-Terminal 1A Positive Voltage Regulator

MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7824A)
(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V I = 33V, C I=0.33µF, C O=0.1µF, unless otherwise specified)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
Symbol
VO
Regline
Regload
IQ
∆IQ
∆V/∆T
VN
RR
VDrop
rO
ISC
IPK
Conditions
TJ =+25 ^°C
IO = 5mA to 1A, PO ≤15W
VI = 27.3V to 38V
VI= 27V to 38V
IO = 500mA
VI= 21V to 33V
TJ =+25 ^°C
VI= 26.7V to 38V
VI= 30V to 36V
TJ =+25 ^°C
IO = 5mA to 1.5A
IO = 5mA to 1.0A
IO = 250mA to 750mA
TJ =+25 ^°C
VI = 27.3V to 38V, TJ =+25 ^°C
VI = 27.3V to 38V, IO = 500mA
IO = 5mA to 1.0A
IO = 5mA
f = 10Hz to 100KHz
TA = 25 ^°C
f = 120Hz, IO = 500mA
VI = 28V to 38V
IO = 1A, TJ =+25 ^°C
f = 1KHz
VI= 35V, TA =+25 ^°C
TJ=+25 ^°C
Min. Typ. Max. Unit
23.5 24 24.5
V
23 24 25
-
18 240
-
6
240
mV
-
18 240
-
6 120
-
15 100
-
15
100
mV
-
7
50
-
5.2 6.0
mA
-
-
0.8
-
-
0.8 mA
-
-
0.5
-
-1.5
- mV/ ^°C
-
10
- µV/Vo
-
54
-
dB
-
2.0
-
V
-
20
-
mΩ
-
250
-
mA
-
2.2
-
A
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
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