Electrical characteristics
L7800AB/AC series
Table 9.
Electrical characteristics of L7818A (VI = 27V, IO=1A, TJ = 0 to 150°C (L7818AC),
TJ = -40 to 125°C (L7818AB), unless otherwise specified)
Symbol
Parameter Test conditions
Output voltage
Min.
Typ.
Max.
Unit
VO
TJ = 25°C
17.64
18
18.36
V
IO = 5mA to 1A, PO ≤15W
VI = 21 to 33V
VO
Output voltage
17.3
18
18.7
V
VI = 21 to 33V, IO = 500 mA
VI = 24 to 30V
25
28
10
5
180
180
90
mV
mV
mV
mV
mV
V
(1)
∆VO
Line regulation
VI = 24 to 30V, TJ = 25°C
VI = 20.6 to 33V, TJ = 25°C
IO = 5mA to 1A
180
100
100
50
25
30
10
4.5
(1)
∆VO
Load regulation
I
O = 5mA to 1.5A, TJ = 25°C
O = 250 to 750mA
I
V
TJ = 25°C
6
mA
mA
mA
mA
mA
dB
Iq
Quiescent current
6
VI = 21 to 33V, IO = 500 mA
0.8
0.8
0.5
∆Iq
Quiescent current change VI = 21 to 33V, TJ = 25°C
IO = 5mA to 1A
SVR
Vd
Supply voltage rejection
Dropout voltage
VI = 22 to 32V, f = 120Hz, IO = 500mA
57
2
IO = 1A, TJ = 25°C
TA = 25°C, B =10Hz to 100KHz
f =1KHz
V
eN
RO
Isc
Output noise voltage
Output resistance
10
19
0.2
2.2
-1
µV/VO
mΩ
A
Short circuit current
VI = 35V, TA = 25°C
Iscp
Short circuit peak current TJ = 25°C
A
∆VO/∆T Output voltage drift
mV/°C
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be
O
taken into account separately. Pulse testing with low duty cycle is used.
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STMICROELECTRONICS [ ST ]
