參數(shù)資料
型號： L78XX
廠商： 意法半導(dǎo)體
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 5.0 AMP POSITIVE VOLTAGE REGULATOR
中文描述： 5.0放大器正電壓穩(wěn)壓器
文件頁數(shù)： 7/23頁
文件大?。?/td> 264K
代理商： L78XX
ELECTRICALCHARACTERISTICS FOR L7818
(refer to the test circuits, T
j
= -55 to 150
o
C,
V
i
= 26V, I
o
= 500 mA,C
i
= 0.33
μ
F, C
o
= 0.1
μ
F unlessotherwise specified)
Symbol
Parameter
Test Conditions
T
j
= 25
o
C
V
o
OutputVoltage
I
o
= 5mA to1 A
V
i
= 22 to 33 V
V
o
*
Line Regulation
V
i
= 21 to 33 V
V
i
= 24 to 30 V
V
o
*
Load Regulation
I
o
= 5 to 1500 mA
I
o
= 250 to 750mA
I
d
Quiescent Current
T
j
= 25
o
C
I
d
Quiescent Current Change
I
o
= 5 to 1000 mA
I
d
Quiescent Current Change
V
i
= 22 to 33 V
V
o
T
eN
OutputNoise Voltage
B = 10Hz to100KHz T
j
= 25
o
C
SVR
Supply Voltage Rejection
V
i
= 22 to 32 V
V
d
Dropout Voltage
I
o
= 1 A
R
o
OutputResistance
f = 1 KHz
I
sc
Short Circuit Current
V
i
= 35 V
I
scp
Short Circuit Peak Current
T
j
= 25
o
C
Min.
Typ.
Max.
Unit
V
o
OutputVoltage
17.3
18
18.7
V
P
o
≤
15W
17.1
18
18.9
V
T
j
=25
o
C
T
j
=25
o
C
T
j
=25
o
C
T
j
=25
o
C
180
90
mV
mV
180
90
mV
mV
6
mA
0.5
mA
0.8
mA
mV/
o
C
OutputVoltage Drift
I
o
= 5mA
2.3
40
μ
V/V
O
dB
f = 120 Hz
59
T
j
=25
o
C
2
2.5
V
22
m
A
T
j
=25
o
C
0.75
1.2
1.3
2.2
3.3
A
ELECTRICALCHARACTERISTICS FOR L7815
(refer to the test circuits, T
j
= -55 to 150
o
C,
V
i
= 23V, I
o
= 500 mA,C
i
= 0.33
μ
F, C
o
= 0.1
μ
F unlessotherwise specified)
Symbol
Parameter
Test Conditions
V
o
OutputVoltage
T
j
= 25
o
C
V
o
OutputVoltage
I
o
= 5mA to1 A
V
i
= 18.5 to 30 V
V
o
*
Line Regulation
V
i
= 17.5 to 30 V
V
i
= 20 to 26 V
V
o
*
Load Regulation
I
o
= 5 to 1500 mA
I
o
= 250 to 750mA
I
d
Quiescent Current
T
j
= 25
o
C
I
d
Quiescent Current Change
I
o
= 5 to 1000 mA
I
d
Quiescent Current Change
V
i
= 18.5 to 30 V
V
o
T
eN
OutputNoise Voltage
B = 10Hz to100KHz T
j
= 25
o
C
SVR
Supply Voltage Rejection
V
i
= 18.5 to 28.5 V
V
d
Dropout Voltage
I
o
= 1 A
R
o
OutputResistance
f = 1 KHz
I
sc
Short Circuit Current
V
i
= 35 V
I
scp
Short Circuit Peak Current
T
j
= 25
o
C
Min.
14.4
Typ.
15
Max.
15.6
Unit
V
P
o
≤
15W
14.25
15
15.75
V
T
j
= 25
o
C
T
j
=25
o
C
T
j
=25
o
C
T
j
=25
o
C
150
75
mV
mV
150
75
mV
mV
6
mA
0.5
mA
0.8
mA
mV/
o
C
OutputVoltage Drift
I
o
= 5mA
1.8
40
μ
V/V
O
dB
f= 120 Hz
60
T
j
=25
o
C
2
2.5
V
19
m
A
T
j
=25
o
C
0.75
1.2
1.3
2.2
3.3
A
* Load and line regulation are specified at constant junction temperature. Changes in V
o
due to heating effects must be taken into account
separately. Pulce testing with low duty cycle isused.
L7800
7/25
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