L78xx, L78xxC, L78xxAB, L78xxAC
Electrical characteristics
VI = 23 V, IO = 1 A, TJ = 0 to 125 °C (L7815AC), TJ = -40 to 125 °C (L7815AB), unless
otherwise specified.
Table 10. Electrical characteristics of L7815A
Symbol
Parameter
Output voltage
Test conditions
Min.
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
ΔVO
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)
ΔVO
Load regulation
I
O = 5 mA to 1.5 A, TJ = 25°C
O = 250 to 750 mA
mV
I
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
ΔIq
Quiescent current change VI = 17.5 to 30 V, TJ = 25°C
O = 5 mA to 1 A
VI = 18.5 to 28.5 V, f = 120 Hz,
I
SVR
Supply voltage rejection
58
dB
IO = 500 mA
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
mΩ
A
Output noise voltage
Output resistance
Short circuit current
10
19
0.2
2.2
-1
VI = 35 V, TA = 25°C
Iscp
Short circuit peak current TJ = 25°C
A
ΔVO/ΔT 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.
Doc ID 2143 Rev 30
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STMICROELECTRONICS [ ST ]
