L78xxAB - L78xxAC
Electrical characteristics
Table 6.
Symbol
V
O
V
O
Electrical characteristics of L7808A
(V
I
= 14 V, I
O
= 1 A, T
J
= 0 to 150 °C (L7808AC),
T
J
= -40 to 125 °C (L7808AB), unless otherwise specified)
Parameter
Output voltage
Output voltage
T
J
= 25°C
I
O
= 5mA to 1A, P
O
≤15W
V
I
= 10.6 to 23V
V
I
= 10.6 to 25V, I
O
= 500 mA
Test conditions
Min.
7.84
7.7
Typ.
8
8
12
15
5
12
25
30
10
4.3
Max.
8.16
8.3
80
80
40
80
100
100
50
6
6
V
I
= 11 to 25V, I
O
= 500 mA
0.8
0.8
0.5
62
2
10
18
0.2
2.2
-0.8
Unit
V
V
mV
mV
mV
mV
mV
V
V
mA
mA
mA
mA
mA
dB
V
µV/V
O
mΩ
A
A
mV/°C
ΔV
O (1)
Line regulation
V
I
= 11 to 17V
V
I
= 11 to 17V, T
J
= 25°C
V
I
= 10.4 to 23V, T
J
= 25°C
I
O
= 5mA to 1A
ΔV
O (1)
Load regulation
I
O
= 5mA to 1.5A, T
J
= 25°C
I
O
= 250 to 750mA
I
q
Quiescent current
T
J
= 25°C
ΔI
q
Quiescent current change
V
I
= 10.6 to 23V, T
J
= 25°C
I
O
= 5mA to 1A
SVR
V
d
eN
R
O
I
sc
I
scp
ΔV
O
/ΔT
Supply voltage rejection
Dropout voltage
Output noise voltage
Output resistance
Short circuit current
Short circuit peak current
Output voltage drift
V
I
= 11.5 to 21.5V, f = 120Hz,
I
O
= 500mA
I
O
= 1A, T
J
= 25°C
T
A
= 25°C, B =10Hz to 100kHz
f =1kHz
V
I
= 35V, T
A
= 25°C
T
J
= 25°C
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.
9/26
STMICROELECTRONICS [ STMICROELECTRONICS ]
