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L7815CV-DG Datasheet, PDF (23/57 Pages) STMicroelectronics – Positive voltage regulator ICs | |||
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L78xx, L78xxC, L78xxAB, L78xxAC
Electrical characteristics
Refer to the test circuits, TJ = 0 to 125 °C, VI = 19 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified.
Table 18. Electrical characteristics of L7812C
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VO Output voltage
TJ = 25°C
11.5 12 12.5 V
VO Output voltage
IO = 5 mA to 1 A, VI = 14.5 to 25 V
11.4 12 12.6 V
VO Output voltage
IO = 1 A, VI = 25 to 27 V, TJ = 25°C
11.4 12 12.6 V
ÎVO(1) Line regulation
VI = 14.5 to 30 V, TJ = 25°C
VI = 16 to 22 V, TJ = 25°C
240
mV
120
ÎVO(1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25°C
IO = 250 to 750 mA, TJ = 25°C
240
mV
120
Id
Quiescent current
TJ = 25°C
8
mA
ÎId
IO = 5 mA to 1 A
Quiescent current change
VI = 14.5 to 30 V
0.5
mA
1
ÎVO/ÎT Output voltage drift
IO = 5 mA
-1
mV/°C
eN Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25°C
75
µV/VO
SVR Supply voltage rejection VI = 15 to 25 V, f = 120 Hz
55
dB
Vd Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO Output resistance
f = 1 kHz
18
mΩ
Isc Short circuit current
VI = 35 V, TJ = 25°C
0.35
A
Iscp Short circuit peak current TJ = 25°C
2.2
A
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.
Doc ID 2143 Rev 30
23/57
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