L78xx, L78xxC, L78xxAB, L78xxAC
Electrical characteristics
V = 23 V, I = 1 A, T = 0 to 125 °C (L7815AC), T = -40 to 125 °C (L7815AB), unless
I
O
J
J
otherwise specified.
Table 10. Electrical characteristics of L7815A
Test conditions Min.
Symbol
Parameter
Output voltage
Typ.
Max.
Unit
VO
VO
VO
TJ = 25°C
14.7
14.4
14.4
15
15
15
15.3
15.6
15.6
V
V
V
Output voltage
Output voltage
IO = 5 mA to 1 A, VI = 17.9 to 28 V
IO = 1 A, VI = 28 to 30 V, TJ = 25°C
VI = 17.9 to 30 V, IO = 500 mA,
TJ = 25°C
13
150
mV
(1)
VI = 20 to 26 V
16
6
150
75
mV
mV
mV
VO
Line regulation
VI = 20 to 26 V, TJ = 25°C
VI = 17.5 to 30 V, TJ = 25°C
IO = 5 mA to 1 A
13
25
30
10
4.4
150
100
100
50
(1)
VO
Load regulation
I
O = 5 mA to 1.5 A, TJ = 25°C
mV
IO = 250 to 750 mA
TJ = 25°C
6
mA
mA
mA
mA
mA
Iq
Quiescent current
6
VI = 17.5 to 30 V, IO = 500 mA
0.8
0.8
0.5
Iq
Quiescent current change VI = 17.5 to 30 V, TJ = 25°C
O = 5 mA to 1 A
I
VI = 18.5 to 28.5 V, f = 120 Hz,
IO = 500 mA
SVR
Supply voltage rejection
58
dB
Vd
eN
RO
Isc
Dropout voltage
IO = 1 A, TJ = 25°C
TA = 25°C, B = 10Hz to 100 kHz
f = 1 kHz
2
V
µV/VO
m
A
Output noise voltage
Output resistance
10
19
0.2
2.2
-1
Short circuit current
Short circuit peak current
VI = 35 V, TA = 25°C
TJ = 25°C
Iscp
A
VO/T Output voltage drift
mV/°C
1. 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.
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