Electrical Characteristics (LM7805A) (Continued)
Refer to the test circuits. 0°C < T < 125°C, I = 1A, V = 10V, C = 0.33µF, C = 0.1µF, unless otherwise specified.
J
O
I
I
O
Symbol
Parameter
Conditions
Min.
4.9
Typ.
5.0
Max.
5.1
Unit
V
Output Voltage
T = +25°C
V
O
J
I
= 5mA to 1A, P ≤ 15W,
4.8
5.0
5.2
O
O
V = 7.5V to 20V
I
(19)
Regline Line Regulation
Regload Load Regulation
V = 7.5V to 25V, I = 500mA
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
5.0
3.0
5.0
1.5
9.0
9.0
4.0
5.0
–
50.0
50.0
50.0
25.0
100
100
50.0
6.0
0.5
0.8
0.8
–
mV
mV
I
O
V = 8V to 12V
I
T = +25°C
V = 7.3V to 20V
I
J
V = 8V to 12V
I
(19)
T = +25°C, I = 5mA to 1.5A
J
O
I
I
= 5mA to 1A
O
= 250mA to 750mA
O
I
Quiescent Current
T = +25°C
mA
mA
Q
J
∆I
Quiescent Current
Change
I = 5mA to 1A
O
Q
V = 8V to 25V, I = 500mA
–
I
O
V = 7.5V to 20V, T = +25°C
–
I
J
(20)
∆V /∆T Output Voltage Drift
I
= 5mA
-0.8
10.0
68.0
2.0
17.0
250
2.2
mV/°C
O
O
V
Output Noise Voltage
f = 10Hz to 100kHz, T = +25°C
–
µV/V
N
A
O
(20)
RR
Ripple Rejection
Dropout Voltage
f = 120Hz, I = 500mA, V = 8V to 18V
–
dB
V
O
I
V
I
= 1A, T = +25°C
–
DROP
O
J
(20)
r
Output Resistance
f = 1kHz
V = 35V, T = +25°C
–
mΩ
mA
A
O
I
Short Circuit Current
–
SC
I
A
(20)
I
Peak Current
T = +25°C
–
PK
J
Notes:
19. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must
O
be taken into account separately. Pulse testing with low duty is used.
20. These parameters, although guaranteed, are not 100% tested in production.
12
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LM78XX/LM78XXA Rev. 1.2
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