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參數(shù)資料
| 型號： | LF45CDT |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT |
| 中文描述： | 極低降穩(wěn)壓器與抑制研究 |
| 文件頁數(shù)： | 4/32頁 |
| 文件大小： | 260K |
| 代理商： | LF45CDT |
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ELECTRICALCHARACTERISTICS FOR LF12AB
(refer to the test circuits, T
j
= 25
o
C,
C
i
= 0.1
μ
F, C
o
= 2.2
μ
F unless otherwise specified)
Symbol
Parameter
V
o
OutputVoltage
I
o
= 50 mA, V
i
= 3.3V
I
o
= 50 mA, V
i
= 3.3V -25<T
a
<85
o
C
V
i
Operating Input Voltage
I
o
= 500 mA
I
out
OutputCurrent Limit
V
o
LineRegulation
V
i
= 2.5to 16 V, I
o
= 5 mA
V
o
Load Regulation
V
i
= 2.8 V
I
d
Quiescent Current
ON MODE
V
i
= 2.5to 16 V I
o
= 0 mA
V
i
= 2.6to 16 V I
o
= 500mA
OFF MODE V
i
= 6 V
SVR
Supply Voltage Rejection
I
o
= 5 mA V
i
= 3.5V
±
1V
f = 120Hz
f = 1KHz
f = 10KHz
eN
OutputNoise Voltage
B = 10Hz to 100KHz
V
d
Dropout Voltage
I
o
= 200 mA
V
il
Control Input Logic Low
-40< T
a
< 125
o
C
V
ih
Control Input Logic High
-40< T
a
< 125
o
C
I
i
Control Input Current
V
i
= 6 V,
C
O
OutputBypass Capacitance
ESR = 0.1to 10
I
o
= 0 to 500mA
Test Conditions
Min.
1.238
1.225
2.5
Typ.
1.25
Max.
1.263
1.275
16
Unit
V
V
V
A
mV
mV
1
2
2
10
10
I
o
= 5 to 500 mA
0.5
1
12
100
mA
mA
μ
A
50
82
77
65
50
1.25
dB
dB
dB
μ
V
V
V
V
μ
A
μ
F
0.8
2
V
c
= 6 V
10
10
2
ELECTRICALCHARACTERISTICS FOR LF12C
(refer to the testcircuits, T
j
= 25
o
C,
C
i
= 0.1
μ
F, C
o
= 2.2
μ
F unless otherwise specified)
Symbol
Parameter
V
o
OutputVoltage
I
o
= 50 mA, V
i
= 3.3V
I
o
= 50 mA, V
i
= 3.3V -25<T
a
<85
o
C
V
i
Operating Input Voltage
I
o
= 500 mA
I
out
OutputCurrent Limit
V
o
LineRegulation
V
i
= 2.5to 16 V, I
o
= 5 mA
V
o
Load Regulation
V
i
= 2.8V
I
d
Quiescent Current
ON MODE
V
i
= 2.5to 16 V I
o
= 0 mA
V
i
= 2.6to 16 V I
o
= 500mA
OFF MODE V
i
= 6 V
SVR
Supply Voltage Rejection
I
o
= 5 mA V
i
= 3.5V
±
1V
f = 120Hz
f = 1KHz
f = 10KHz
eN
OutputNoise Voltage
B = 10Hz to 100KHz
V
d
Dropout Voltage
I
o
= 200 mA
V
il
Control Input Logic Low
-40< T
a
< 125
o
C
V
ih
Control Input Logic High
-40< T
a
< 125
o
C
I
i
Control Input Current
V
i
= 6 V,
C
O
OutputBypass Capacitance
ESR = 0.1to 10
I
o
= 0 to 500mA
Test Conditions
Min.
1.225
1.2
2.5
Typ.
1.25
Max.
1.275
1.3
16
Unit
V
V
V
A
mV
mV
1
2
2
10
10
I
o
= 5to 500mA
0.5
1
12
100
mA
mA
μ
A
50
82
77
65
50
1.25
dB
dB
dB
μ
V
V
V
V
μ
A
μ
F
0.8
2
V
c
= 6 V
10
10
2
LF00AB/C
4/32
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