MC7808 FAIRCHILD [Fairchild Semiconductor], MC7808 Datasheet - Page 19

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MC7808

Manufacturer Part Number
MC7808
Description
3-Terminal 1A Positive Voltage Regulator
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet

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Electrical Characteristics (MC7824A)
(Refer to the test circuits. 0 C < T
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
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
into account separately. Pulse testing with low duty is used.
Parameter
J
Regload
Symbol
Regline
V
< 125 C, I
V/ T
RR
I
I
V
V
Drop
I
r
SC
PK
Q
I
O
O
N
Q
o
T
I
V
V
I
V
T
T
I
I
I
T
V
V
I
I
f = 10Hz to 100KHz
T
f = 120Hz, I
V
I
f = 1KHz
V
T
O
O
O
O
O
O
O
O
=1A, V
J
J
J
J
A
J
I
I
I
I
I
I
I
= 27V to 38V
= 21V to 33V
= 35V, T
=+25 C
= 27.3V to 38V
= 27.3V to 38V, T
= 27.3V to 38V, I
= 28V to 38V
= 5mA to 1A, P
= 500mA
= 5mA to 1.5A
= 5mA to 1.0A
= 250mA to 750mA
= 5mA to 1.0A
= 5mA
= 1A, T
=+25 C
=+25 C
=+25 C
=+25 C
= 25 C
I
= 33V, C
J
Conditions
A
O
=+25 C
=+25 C
= 500mA
V
V
I
I
= 26.7V to 38V
= 30V to 36V
O
I
=0.33 F, C
O
J
15W
= 500mA
=+25 C
O
=0.1 F, unless otherwise specified)
Min.
23.5
23
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MC78XX/LM78XX/MC78XXA
Typ.
-1.5
250
5.2
2.0
2.2
24
24
18
18
15
15
10
54
20
6
6
7
-
-
-
Max.
24.5
240
240
240
120
100
100
6.0
0.8
0.8
0.5
25
50
-
-
-
-
-
-
-
mV/ C
Unit
m
mV
mV
mA
mA
V/Vo
mA
dB
V
V
A
19

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