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L7808ACV Datasheet(Hoja de datos) 9 Page - STMicroelectronics

No. de Pieza. L7808ACV
Descripción  PRECISION 1A REGULATORS
Descarga  17 Pages
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Fabricante  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
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ELECTRICAL CHARACTERISTICS FOR L7812A (Vi = 19V, Io = 1 A, Tj = 0 to 125
oC (L7812AC),
Tj = -40 to 125
oC (L7812AB) unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Tj =25
oC
11.75
12
12.25
V
Vo
Output Voltage
Io = 5 mA to 1 A
Po
≤ 15 W
Vi = 14.8 to 27 V
11.5
12
12.5
V
∆Vo*
Line Regulation
Vi = 14.8 to 30 V
Io = 500 mA
Vi =16 to 22 V
Vi =16 to 22 V
Tj =25
oC
Vi = 14.5 to 27 V
Tj =25
oC
13
16
6
13
120
120
60
120
mV
mV
mV
mV
∆Vo*
Load Regulation
Io = 5 mA to 1 A
Io = 5 mA to 1.5 A
Tj =25
oC
Io = 250 to 750 mA
25
30
10
100
100
50
mV
mV
mV
Id
Quiescent Current
Tj =25
oC4.4
6
6
mA
∆Id
Quiescent Current Change
Vi =15 to 30 V
Io = 500 mA
Vi = 14.8 to 27 V
Tj =25
oC
Io = 5 mA to 1 A
0.8
0.8
0.5
mA
mA
mA
SVR
Supply Voltage Rejection
Vi = 15 to 25 V
f = 120 Hz
Io = 500 mA
60
dB
Vd
Dropout Voltage
Io =1 A
Tj =25
oC2
V
eN
Output Noise Voltage
B = 10Hz to 100KHz
Tj =25
oC10
µV/Vo
Ro
Output Resistance
f = 1KHz
18
m
Isc
Short Circuit Current
Vi =35 V
Tamb =25
oC0.2
A
Iscp
Short Circuit Peack Current
Tj =25
oC2.2
A
Vo
∆T
Output Voltage Drift
-1
mV/
oC
* 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.
L7800AB/AC
9/17




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