LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7809)
(Continued)
Refer to the test circuits. -40°C
<
T
J
<
125°C, I
O
= 500mA, V
I
= 15V, C
I
= 0.33µF, C
O
= 0.1µF, unless otherwise specified.
Symbol
V
O
Parameter
Output Voltage
Conditions
T
J
= +25°C
5mA
≤
I
O
≤
1A, P
O
≤
15W,
V
I
= 11.5V to 24V
Min.
8.65
8.6
–
–
–
–
–
–
–
–
–
56.0
–
–
–
–
Typ.
9.0
9.0
6.0
2.0
12.0
4.0
5.0
–
–
-1.0
58.0
71.0
2.0
17.0
250
2.2
Max.
9.35
9.4
180
90.0
180
90.0
8.0
0.5
1.3
–
–
–
–
–
–
–
Unit
V
Regline
Line Regulation
(7)
T
J
= +25°C V
I
= 11.5V to 25V
V
I
= 12V to 17V
T
J
= +25°C I
O
= 5mA to 1.5A
I
O
= 250mA to 750mA
T
J
= +25°C
V
I
= 11.5V to 26V
mV
Regload Load Regulation
(7)
mV
I
Q
∆I
Q
∆V
O
/∆T
V
N
RR
V
DROP
r
O
I
SC
I
PK
Quiescent Current
mA
mA
Quiescent Current Change I
O
= 5mA to 1A
Output Voltage Drift
(8)
Output Noise Voltage
Ripple Rejection
(8)
Dropout Voltage
Output Resistance
(8)
Short Circuit Current
Peak Current
(8)
I
O
= 5mA
f = 10Hz to 100kHz, T
A
= +25°C
f = 120Hz, V
O
= 13V to 23V
I
O
= 1A, T
J
= +25°C
f = 1kHz
V
I
= 35V, T
A
= +25°C
T
J
= +25°C
mV/°C
µV/V
O
dB
V
mΩ
mA
A
Notes:
7. 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.
8. These parameters, although guaranteed, are not 100% tested in production.
6
LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
