MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7808A)
(Refer to the test circuits. 0°C < T
J
< 125°C, I
o
=1A, V
I
= 14V, C
I
=0.33µF, C
O
=0.1µF, unless otherwise specified)
Parameter
Output Voltage
Symbol
V
O
Conditions
T
J
=+25
o
C
I
O
= 5mA to 1A, P
O
≤15W
V
I
= 10.6V to 23V
V
I
= 10.6V to 25V
I
O
= 500mA
Line Regulation (Note1)
Regline
V
I
= 11V to 17V
T
J
=+25
o
C
V
I
= 10.4V to 23V
V
I
= 11V to 17V
Min.
7.84
7.7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ.
8
8
6
3
6
2
12
12
5
5.0
-
-
-
-0.8
10
62
2
18
250
2.2
Max.
8.16
8.3
80
80
80
40
100
100
50
6
0.5
0.8
0.8
-
-
-
-
-
-
-
mV/
o
C
µV/Vo
dB
V
mΩ
mA
A
mA
mA
mV
mV
V
Unit
Load Regulation (Note1)
Regload
T
J
=+25
o
C
I
O
= 5mA to 1.5A
I
O
= 5mA to 1A
I
O
= 250mA to 750mA
T
J
=+25
o
C
I
O
= 5mA to 1A
V
I
= 11V to 25V, I
O
= 500mA
V
I
= 10.6V to 23V, T
J
=+25
o
C
I
O
= 5mA
f = 10Hz to 100KHz
T
A
=+25
o
C
f = 120Hz, I
O
= 500mA
V
I
= 11.5V to 21.5V
I
O
= 1A, T
J
=+25
o
C
f = 1KHz
V
I
= 35V, T
A
=+25
o
C
T
J
=+25
o
C
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
I
Q
∆I
Q
∆V/∆T
V
N
RR
V
Drop
r
O
I
SC
I
PK
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
O
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
13
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
