LM7812(2013) View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
LM7812 Datasheet PDF : 24 Pages
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Electrical Characteristics (LM7815A)
Refer to the test circuit, 0°C < TJ < 125°C, IO = 1 A, VI = 23 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified.
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
VO
Output Voltage
TJ = +25°C
IO = 5 mA to 1 A, PO ≤ 15 W,
VI = 17.7 V to 30 V
14.75 15.00 15.30
V
14.40 15.00 15.60
VI = 17.4 V to 30 V, IO = 500 mA
10.0 150.0
Regline Line Regulation(28)
VI = 20 V to 26 V
TJ = +25°C
VI = 17.5 V to 30 V
VI = 20 V to 26 V
5.0 150.0
mV
11.0 150.0
3.0 75.0
Regload Load Regulation(28)
TJ = +25°C, IO = 5 mA to 1.5 A
IO = 5 mA to 1 A
12.0 100.0
12.0 100.0 mV
IO = 250 mA to 750 mA
5.0 50.0
IQ
Quiescent Current
TJ =+25°C
5.2
6.0
mA
ΔIQ
ΔVO/ΔT
Quiescent Current
Change
Output Voltage Drift(29)
IO = 5 mA to 1 A
VI = 17.5 V to 30 V, IO = 500 mA
VI = 17.5 V to 30 V, TJ = +25°C
IO = 5 mA
0.5
0.8 mA
0.8
-1.0
mV/°C
VN
Output Noise Voltage
f = 10 Hz to 100 kHz, TA = +25°C
10.0
μV/VO
RR
Ripple Rejection(29)
f = 120 Hz, VO = 500 mA,
VI =18.5 V to 28.5 V
58.0
dB
VDROP
RO
Dropout Voltage
Output Resistance(29)
IO = 1 A, TJ =+25°C
f = 1 kHz
2.0
V
19.0
mΩ
ISC
Short-Circuit Current
VI = 35 V, TJ =+25°C
IPK
Peak Current(29)
TJ =+25°C
250
mA
2.2
A
Notes:
28. 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.
29. These parameters, although guaranteed, are not 100% tested in production.
© 2006 Fairchild Semiconductor Corporation
LM78XX / LM78XXA Rev. 1.3.0
16
www.fairchildsemi.com
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