Absolute maximum ratings are those values beyond which damage to the device may occur. The datasheet specifications should be met, without exception, to ensure
that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation outside datasheet specifica-
tions.
Electrical Characteristics (LM7805)
Parameter
Output Voltage
Symbol
V
O
T
J
=
25
q
C
(Refer to the test circuits.
40
q
C
T
J
125
q
C, I
O
= 500mA, V
I
= 10V, C
I
= 0.1
P
F, unless otherwise specified)
Conditions
Min
4.8
4.75
–
–
–
–
–
–
–
–
–
62.0
–
–
–
–
Typ
5.0
5.0
4.0
1.6
9.0
4.0
5.0
0.03
0.3
Max
5.2
V
5.25
100
mV
50.0
100
mV
50.0
8.0
0.5
mA
1.3
–
–
–
–
–
–
–
mV/
q
C
mA
Unit
5mA
d
I
O
d
1A, P
O
d
15W, V
I
= 7V to 20V
Line Regulation
(Note 2)
Load Regulation
Regload
T
J
=
25
q
C
Regline
T
J
=
25
q
C
V
O
= 7V to 25V
V
I
= 8V to 12V
I
O
= 5mA to 1.5mA
I
O
= 250mA to 750mA
Quiescent Current
Quiescent Current Change
I
Q
T
J
=
25
q
C
I
O
= 5mA to 1A
V
I
= 7V to 25V
Output Voltage Drift (Note 3)
Output Noise Voltage
Ripple Rejection (Note 3)
Dropout Voltage
Output Resistance (Note 3)
Short Circuit Current
Peak Current (Note 3)
'
I
Q
'
V
O
/
'
T
V
N
RR
V
DROP
rO
I
SC
I
PK
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=
25
q
C
f = 120Hz, V
O
= 8V to 18V
I
O
= 1A, T
J
=
25
q
C
f = 1KHz
V
I
= 35V, T
A
=
25
q
C
T
J
=
25
q
C
0.8
42.0
73.0
2.0
15.0
230
2.2
P
V/V
O
dB
V
m
:
mA
A
Note 2:
Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account separately. Pulse testing with
low duty is used.
Note 3:
These parameters, although guaranteed, are not 100% tested in production.
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