參數(shù)資料
型號： L7818AB
廠商： 意法半導(dǎo)體
英文描述： PRECISION 1A REGULATORS
中文描述： 精密1A條調(diào)節(jié)器
文件頁數(shù)： 13/34頁
文件大小： 1801K
代理商： L7818AB
L7800 SERIES
13/34
Table 19: Electrical Characteristics Of L7812C
(refer to the test circuits, T
J
= 0 to 125°C, V
I
= 19V,
I
O
= 500 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified).
Symbol
Parameter
Test Conditions
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Table 20: Electrical Characteristics Of L7815C
(refer to the test circuits, T
J
= 0 to 125°C, V
I
= 23V,
I
O
= 500 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified).
Symbol
Parameter
Test Conditions
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Min.
Typ.
Max.
Unit
V
O
V
O
Output Voltage
Output Voltage
T
J
= 25°C
I
O
= 5 mA to 1 A
V
I
= 14.5 to 27 V
V
I
= 14.5 to 30 V
V
I
= 16 to 22 V
I
O
= 5 mA to 1.5 A
I
O
= 250 to 750 mA
T
J
= 25°C
I
O
= 5 mA to 1 A
V
I
= 14.5 to 30 V
I
O
= 5 mA
B =10Hz to 100KHz
V
I
= 15 to 25 V
I
O
= 1 A
f = 1 KHz
V
I
= 35 V
T
J
= 25°C
11.5
11.4
12
12
12.5
12.6
V
V
P
O
≤
15W
V
O
(*)
Line Regulation
T
J
= 25°C
T
J
= 25°C
T
J
= 25°C
T
J
= 25°C
240
120
240
120
8
0.5
1
mV
V
O
(*)
Load Regulation
mV
I
d
I
d
Quiescent Current
Quiescent Current Change
mA
mA
V
O
/
T Output Voltage Drift
eN
Output Noise Voltage
SVR
Supply Voltage Rejection
V
d
Dropout Voltage
R
O
Output Resistance
I
sc
Short Circuit Current
I
scp
Short Circuit Peak Current
-1
75
mV/°C
μ
V/V
O
dB
V
m
A
A
T
J
= 25°C
f = 120Hz
55
T
J
= 25°C
2
18
0.35
2.2
T
J
= 25°C
Min.
Typ.
Max.
Unit
V
O
V
O
Output Voltage
Output Voltage
T
J
= 25°C
I
O
= 5 mA to 1 A
V
I
= 17.5 to 30 V
V
I
= 17.5 to 30 V
V
I
= 20 to 26 V
I
O
= 5 mA to 1.5 A
I
O
= 250 to 750 mA
T
J
= 25°C
I
O
= 5 mA to 1 A
V
I
= 17.5 to 30 V
I
O
= 5 mA
B =10Hz to 100KHz
V
I
= 18.5 to 28.5 V
I
O
= 1 A
f = 1 KHz
V
I
= 35 V
T
J
= 25°C
14.5
14.25
15
15
15.6
15.75
V
V
P
O
≤
15W
V
O
(*)
Line Regulation
T
J
= 25°C
T
J
= 25°C
T
J
= 25°C
T
J
= 25°C
300
150
300
150
8
0.5
1
mV
V
O
(*)
Load Regulation
mV
I
d
I
d
Quiescent Current
Quiescent Current Change
mA
mA
V
O
/
T Output Voltage Drift
eN
Output Noise Voltage
SVR
Supply Voltage Rejection
V
d
Dropout Voltage
R
O
Output Resistance
I
sc
Short Circuit Current
I
scp
Short Circuit Peak Current
-1
90
mV/°C
μ
V/V
O
dB
V
m
A
A
T
J
= 25°C
f = 120Hz
54
T
J
= 25°C
2
19
0.23
2.2
T
J
= 25°C
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