L7800AB/AC SERIES
ELECTRICAL CHARACTERISTICS OF L7818A (V =27V, I =1A, T = 0 to 150°C (L7818AC),
I
O
J
T = -40 to 125°C (L7818AB), unless otherwise specified.)
J
Symbol
Parameter
Output Voltage
Output Voltage
Test Conditions
Min.
17.64
17.3
Typ.
18
Max.
18.36
18.7
Unit
V
V
V
T = 25°C
J
O
O
I
= 5mA to 1A
P
≤ 15W
O
18
V
O
V = 21 to 33V
I
∆V (*) Line Regulation
V = 21 to 33V
I = 500 mA
O
25
28
10
5
180
180
90
mV
mV
mV
mV
mV
V
O
I
V = 24 to 30V
I
V = 24 to 30V
T = 25°C
J
I
V = 20.6 to 33V
T = 25°C
180
100
100
50
I
J
∆V (*) Load Regulation
I
I
I
= 5mA to 1A
25
30
10
4.5
O
O
O
O
= 5mA to 1.5A T = 25°C
J
= 250 to 750mA
V
I
Quiescent Current
T
= 25°C
J
6
mA
q
6
mA
mA
∆I
Quiescent Current Change V = 21 to 33V
I = 500 mA
O
0.8
q
I
V = 21 to 33V
T = 25°C
0.8
0.5
mA
mA
dB
I
J
I
= 5mA to 1A
O
SVR
Supply Voltage Rejection
V = 22 to 32V
f = 120Hz
57
I
I
= 500mA
O
O
V
Dropout Voltage
I
=1 A
T = 25°C
2
V
d
J
eN
Output Noise Voltage
Output Resistance
T
= 25°C
B =10Hz to 100KHz
10
19
0.2
2.2
-1
µV/V
mΩ
A
A
O
R
f =1KHz
V = 35V
O
I
Short Circuit Current
Short Circuit Peak Current
T = 25°C
A
sc
I
I
T
= 25°C
J
A
scp
∆V /∆T Output Voltage Drift
mV/°C
O
(*) Load and Line Regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken into account
O
separately. Pulse testing with low duty cycle is used.
11/18
STMICROELECTRONICS [ ST ]
