L7800AB/AC
o
ELECTRICAL CHARACTERISTICS FOR L7808A
(Vi = 14V, Io = 1 A, Tj = 0 to 125 C (L7808AC),
Tj = -40 to 125 oC (L7808AB)unless otherwise specified)
Symbol
Vo
Parameter
Output Voltage
Output Voltage
Test Conditions
Min.
7.84
7.7
Typ.
Max.
8.16
8.3
Unit
V
Tj = 25 oC
8
8
Vo
Io = 5 mA to 1 A
Vi = 10.6to 23 V
Po 15 W
V
≤
V * LineRegulation
o
Vi = 10.6to 25 V Io = 500 mA
Vi = 11 to 17 V
12
15
5
80
80
40
80
mV
mV
mV
mV
∆
Vi = 11 to 17 V
Tj = 25 oC
Vi = 10.4to 23 V Tj = 25 oC
12
∆Vo* Load Regulation
Io = 5 mA to 1 A
25
30
10
100
100
50
mV
mV
mV
Io = 5 mA to 1.5 A Tj = 25 oC
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
4.3
6
6
mA
I
Quiescent Current Change
Vi = 11 to 25 V
Vi = 10.6to 23 V
Io = 5 mA to 1 A
Io = 500 mA
Tj = 25 oC
0.8
0.8
0.5
mA
mA
mA
∆
d
SVR Supply Voltage Rejection
Vi = 11.5to 21.5 V
Io = 500 mA
f = 120 Hz
62
dB
Vd
eN
Ro
Isc
Iscp
V
Dropout Voltage
Io = 1 A
Tj = 25 oC
2
V
Output Noise Voltage
Output Resistance
B = 10Hz to 100KHz
Tj = 25 oC
10
V/V
µ
o
f = 1KHz
18
m
Ω
Short Circuit Current
Short Circuit Peack Current
Output Voltage Drift
Vi = 35 V Tamb = 25 oC
Tj = 25 oC
0.2
2.2
-0.8
A
A
mV/oC
∆
o
∆T
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
7/17
STMICROELECTRONICS [ ST ]
