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LM7818ACT Datasheet(PDF) 9 Page - Fairchild Semiconductor

Part # LM7818ACT
Description  3-Terminal 1A Positive Voltage Regulator
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

LM7818ACT Datasheet(HTML) 9 Page - Fairchild Semiconductor

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Electrical Characteristics (LM7806A)
(Refer to the test circuits. 0
qC  TJ  125qC, IO = 1A, VI = 11V, CI = 0.33PF, CO = 0.1PF, unless otherwise specified)
Note 22: 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.
Note 23: These parameters, although guaranteed, are not 100% tested in production.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Output Voltage
VO
TJ = 25qC
5.58
6.0
6.12
V
IO = 5mA to 1A, PO d 15W, VI = 8.6V to 21V
5.76
6.0
6.24
Line Regulation
Regline
VI = 8.6V to 25V, IO = 500mA
5.0
60.0
mV
(Note 22)
VI = 9V to 13V
3.0
60.0
TJ = 25qCVI = 8.3V to 21V
5.0
60.0
VI = 9V to 13V
1.5
30.0
Load Regulation
Regload
TJ = 25qC, IO = 5mA to 1.5mA
9.0
100
mV
(Note 22)
IO = 5mA to 1mA
4.0
100
IO = 250mA to 750mA
5.0
50.0
Quiescent Current
IQ
TJ = 25qC–
4.3
6.0
mA
Quiescent Current Change
'IQ
IO = 5mA to 1A
0.5
mA
VI = 19V to 25V, IO = 500mA
0.8
VI = 8.5V to 21V, TJ = 25qC–
0.8
Output Voltage Drift (Note 23)
'VO/'TIO = 5mA
0.8
mV/
qC
Output Noise Voltage
VN
f = 10Hz to 100KHz, TA = 25qC
10.0
PV/VO
Ripple Rejection (Note 23)
RR
f = 120Hz, IO = 500mA, VI = 9V to 19V
65.0
dB
Dropout Voltage
VDROP
IO = 1A, TJ = 25qC–
2.0
V
Output Resistance (Note 23)
rO
f = 1KHz
17.0
m
:
Short Circuit Current
ISC
VI = 35V, TA = 25qC–
250
mA
Peak Current (Note 23)
IPK
TJ =25qC–
2.2
A


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