MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7809)
(Refer to test circuit ,0°C < T
J
< 125°C, I
O
= 500mA, V
I
=15V, C
I
= 0.33µF, C
O
= 0.1µF, unless otherwise specified)
Parameter
Symbol
T
J
=+25°C
Output Voltage
V
O
5.0mA≤ I
O
≤1.0A,
P
O
≤15W
V
I
= 11.5V to 24V
T
J
=+25°C
T
J
=+25°C
T
J
=+25°C
I
O
= 5mA to 1.0A
V
I
= 11.5V to 26V
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=+25
°C
f = 120Hz
V
I
= 13V to 23V
I
O
= 1A, T
J
=+25°C
f = 1KHz
V
I
= 35V, T
A
=+25°C
T
J
= +25°C
V
I
= 11.5V to 25V
V
I
= 12V to 17V
I
O
= 5mA to 1.5A
I
O
= 250mA to 750mA
Conditions
MC7809
Min.
8.65
8.6
-
-
-
-
-
-
-
-
-
56
-
-
-
-
Typ.
9
9
6
2
12
4
5.0
-
-
-1
58
71
2
17
250
2.2
Max.
9.35
9.4
180
90
180
90
8.0
0.5
1.3
-
-
-
-
-
-
-
V
mV
mV
mA
mA
mV/
°C
µV/Vo
dB
V
mΩ
mA
A
Unit
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
Regline
Regload
I
Q
∆I
Q
∆V
O
/∆T
V
N
RR
V
Drop
r
O
I
SC
I
PK
Note:
1. 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.
5
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
