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LM7812A Datasheet(HTML) 7 Page - Fairchild Semiconductor

Part No. LM7812A
Description  3-TERMINAL 1A POSITIVE VOLTAGE REGULATORS
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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LM7812A Datasheet(HTML) 7 Page - Fairchild Semiconductor

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LM78XX (KA78XX, MC78XX) FIXED VOLTAGE REGULATOR (POSITIVE)
LM7811/I/R/RI ELECTRICAL CHARACTERISTICS
(Refer to test circuit, TMIN<TJ<TMAX, IO = 500mA, VI=18V, CI=0.33
µF, C
O = 0.I
µF, unless otherwise specified)
* TMIN <TJ <TMAX
LM78XXI/RI: TMIN= - 40
°C, T
MAX = +125
°C
LM78XX/R: TMIN= 0
°C, T
MAX= +125
°C
* Load and line regulation are specified at constant, junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LM7811I
LM7811
Min Typ
Max
Min Typ
Max
TJ =+25
°C
10.6
11
11.4
10.6
11
11.4
Output Voltage
VO
5.0mA
≤ I
O
≤1.0A, P
D
≤15W
VI = 13.5V to 26V
VI= 14.5V to 26V
10.5
11
11.5
10.5
11
11.5
V
VI = 13.5V to 25V
10
220
10
220
VI = 14V to 21V
3.0
110
3
110
IO = 5.0mA to 1.5A
12
220
12
220
IO = 250mA to 750mA
4
110
4
110
Quiescent Current
IQ
TJ =+25
°C
5.1
8
5.1
8
mA
IO = 5mA to 1.0A
0.5
0.5
Quiescent Current Change
∆I
Q
VI = 13.5V to 29V
1.0
mA
VI = 14.5V to 29V
1.0
Output Voltage Drift
∆V
O/
∆T IO = 5mA
-1
-1
mV/
°C
Output Noise Voltage
VN
f = 10Hz to 100Khz, TA =+25
°C
70
70
µV/V
O
Ripple
Rejection
RR
f = 120Hz
VI = 14V to 24V
55
71
55
71
dB
Dropout Voltage
VD
IO = 1A, TJ=+25
°C
2
2
V
Output Resistance
RO
f = 1KHz
18
18
m
Short Circuit Current
ISC
VI = 35V, TA=+25
°C
250
250
mA
Peak Current
IPK
TJ =+25
°C
2.2
2.2
A
Unit
Line Regulation
∆V
O
∆V
O
TJ =+25
°C
TJ =+25
°C
Load Regulation
Characteristic
Symbol
Test Conditions
mV
mV


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