Electrical characteristics
L78xx - L78xxC
Table 17.
Symbol
V
O
V
O
ΔV
O(1)
ΔV
O(1)
I
d
ΔI
d
ΔV
O
/ΔT
eN
SVR
V
d
R
O
I
sc
I
scp
Electrical characteristics of L7809C
(refer to the test circuits, T
J
= 0 to 150°C, V
I
= 15 V,
I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise specified)
Parameter
Output voltage
Output voltage
T
J
= 25°C
I
O
= 5 mA to 1 A, P
O
≤
15 W
V
I
= 11.5 to 26 V
V
I
= 11.5 to 26 V, T
J
= 25°C
V
I
= 12 to 18 V, T
J
= 25°C
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
I
O
= 5 mA to 1.5 A, T
J
= 25°C
I
O
= 250 to 750 mA, T
J
= 25°C
T
J
= 25°C
I
O
= 5 mA to 1 A
V
I
= 11.5 to 26 V
I
O
= 5 mA
B =10 Hz to 100 KHz, T
J
= 25°C
V
I
= 12 to 23 V, f = 120 Hz
I
O
= 1 A, T
J
= 25°C
f = 1 KHz
V
I
= 35 V, T
J
= 25°C
T
J
= 25°C
55
2
17
0.40
2.2
-1
70
Test conditions
Min.
8.64
8.55
Typ.
9
9
Max.
9.36
9.45
180
mV
90
180
mV
90
8
0.5
mA
1
mV/°C
µV/V
O
dB
V
mΩ
A
A
mA
Unit
V
V
Line regulation
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 cycle is used.
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