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LM7808 Datasheet(PDF) 10 Page - Fairchild Semiconductor

No. de pieza LM7808
Descripción Electrónicos  3-TERMINAL 1A POSITIVE VOLTAGE REGULATORS
Download  28 Pages
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

LM7808 Datasheet(HTML) 10 Page - Fairchild Semiconductor

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LM78XX (KA78XX, MC78XX) FIXED VOLTAGE REGULATOR (POSITIVE)
LM7818/I/R/RI ELECTRICAL CHARACTERISTICS
(Refer to test circuit, TMIN<TJ<TMAX, IO =500mA, VI =27V, CI =0.33
µF, C
O =0.1
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.
LM7818I
LM7818
Min Typ
Max
Min Typ
Max
TJ =+25
°C
17.3
18
18.7
17.3
18
18.7
Output Voltage
VO
5.0mA
≤ I
O
≤1.0A, P
D
≤15W
VI = 21V to 33V
VI= 22V to 33V
17.1
18
18.9
17.1
18
18.9
V
VI = 21V to 33V
15
360
15
360
VI = 24V to 30V
5
180
5
180
IO = 5mA to 1.5A
15
360
15
360
IO = 250mA to 750mA
5.0
180
5.0
180
Quiescent Current
IQ
TJ =+25
°C
5.2
8
5.2
8
mA
IO = 5mA to 1.0A
0.5
0.5
Quiescent Current Change
∆I
Q
VI = 21V to 33V
1
mA
VI = 22V to 33V
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
110
110
µV/V
O
Ripple
Rejection
RR
f = 120Hz
VI = 22V to 32V
53
69
53
69
dB
Dropout Voltage
VD
IO = 1A, TJ=+25
°C
2
2
V
Output Resistance
RO
f = 1KHz
22
22
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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