Electrical Characteristics (LM7815A) (Continued)
Refer to the test circuits. 0°C < TJ < 125°C, IO = 1A, VI = 23V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Symbol
Parameter
Conditions
Min. Typ. Max. Units
VO
Output Voltage
TJ = +25°C
14.75 15.0
Regline Line Regulation(31)
IO = 5mA to 1A, PO ≤ 15W,
VI = 17.7V to 30V
VI = 17.4V to 30V, IO = 500mA
14.4
15.0
–
10.0
VI = 20V to 26V
–
5.0
TJ = +25°C VI = 17.5V to 30V
–
11.0
Regload Load Regulation(31)
VI = 20V to 26V
TJ = +25°C, IO = 5mA to 1.5A
–
3.0
–
12.0
IO = 5mA to 1A
–
12.0
IO = 250mA to 750mA
–
5.0
IQ
Quiescent Current
TJ = +25°C
–
5.2
∆IQ Quiescent Current Change IO = 5mA to 1A
–
–
VI = 17.5V to 30V, IO = 500mA
–
–
∆VO/∆T Output Voltage Drift(32)
VI = 17.5V to 30V, TJ = +25°C
IO = 5mA
–
–
–
-1.0
VN
Output Noise Voltage
f = 10Hz to 100kHz, TA = +25°C
–
10.0
RR
Ripple Rejection(32)
f = 120Hz, IO = 500mA,
VI = 18.5V to 28.5V
–
58.0
VDROP
rO
Dropout Voltage
Output Resistance(32)
IO = 1A, TJ = +25°C
f = 1kHz
–
2.0
–
19.0
ISC Short Circuit Current
IPK
Peak Current(32)
VI = 35V, TA = +25°C
TJ = +25°C
–
250
–
2.2
15.3
V
15.6
150
mV
150
150
75.0
100
mV
100
50.0
6.0
mA
0.5
mA
0.8
0.8
–
mV/°C
–
µV/VO
–
dB
–
V
–
mΩ
–
mA
–
A
Notes:
31. 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 is used.
32. These parameters, although guaranteed, are not 100% tested in production.
18
LM78XX/LM78XXA Rev. 1.0
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