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參數(shù)資料
| 型號： | L7900AB_SERIES |
| 文件頁數(shù)： | 6/12頁 |
| 文件大小： | 225K |
| 代理商： | L7900AB_SERIES |
* 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 is used.
ELECTRICAL CHARACTERISTICS FOR L7918C
(refer to the test circuits, T
j
= 0 to 150
o
C,
V
i
= -27V, I
o
= 500 mA, C
i
= 2.2
μ
F, C
o
= 1
μ
F unless otherwise specified)
Symbol
V
o
V
o
Parameter
Test Conditions
Min.
-17.3
-17.1
Typ.
-18
-18
Max.
-18.7
-18.9
Unit
V
V
Output Voltage
Output Voltage
T
j
= 25
o
C
I
o
= -5 mA to -1 A
V
i
= -22 to -33 V
V
i
= -21 to -33 V
V
i
= -24 to -30 V
I
o
= 5 to 1500 mA
I
o
= 250 to 750 mA
T
j
= 25
o
C
I
o
= 5 to 1000 mA
V
i
= -22 to -33 V
I
o
= 5 mA
P
o
≤
15 W
V
o
*
Line Regulation
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25
o
C
360
180
360
180
3
0.5
1
mV
mV
mV
mV
mA
mA
mA
mV/
o
C
V
o
*
Load Regulation
I
d
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
I
d
I
d
V
o
T
e
N
SVR
V
d
-1
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
B = 10Hz to 100KHz
V
i
= 10 V
I
o
= 1 A
V
O
= 100 mV
T
j
= 25
o
C
300
60
1.1
μ
V
dB
V
f = 120 Hz
T
j
= 25
o
C
54
I
sc
I
scp
Short Circuit Current
Short Circuit Peak Current
1.1
2.2
A
A
T
j
= 25
o
C
ELECTRICAL CHARACTERISTICS FOR L7920C
(refer to the test circuits, T
j
= 0 to 150
o
C,
V
i
= -29V, I
o
= 500 mA, C
i
= 2.2
μ
F, C
o
= 1
μ
F unless otherwise specified)
Symbol
V
o
V
o
Parameter
Test Conditions
Min.
-19.2
-19
Typ.
-20
-20
Max.
-20.8
-21
Unit
V
V
Output Voltage
Output Voltage
T
j
= 25
o
C
I
o
= -5 mA to -1 A
V
i
= -24 to -35 V
V
i
= -23 to -35 V
V
i
= -26 to -32 V
I
o
= 5 to 1500 mA
I
o
= 250 to 750 mA
T
j
= 25
o
C
I
o
= 5 to 1000 mA
V
i
= -24 to -35 V
I
o
= 5 mA
P
o
≤
15 W
V
o
*
Line Regulation
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25
o
C
400
200
400
200
3
0.5
1
mV
mV
mV
mV
mA
mA
mA
mV/
o
C
V
o
*
Load Regulation
I
d
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
I
d
I
d
V
o
T
e
N
SVR
V
d
-1.1
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
B = 10Hz to 100KHz
V
i
= 10 V
I
o
= 1 A
V
O
= 100 mV
T
j
= 25
o
C
350
60
1.1
μ
V
dB
V
f = 120 Hz
T
j
= 25
o
C
54
I
sc
I
scp
Short Circuit Current
Short Circuit Peak Current
0.9
2.5
A
A
T
j
= 25
o
C
L7900 SERIES
6/12
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