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LF45AB 数据表(PDF) 22 Page - STMicroelectronics

部件名 LF45AB
功能描述  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
PDF  32 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LF45AB 数据表(HTML) 22 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS FOR LF120AB (refer to the test circuits, Tj =25
oC,
Ci = 0.1
µF, Co = 2.2 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Io =50 mA, Vi =15 V
Io =50 mA, Vi = 15 V -25<Ta<85
oC
11. 880
11. 760
12
12. 120
12. 240
V
V
Vi
Operating Input Voltage
Io = 500 mA
16
V
Iout
Output Current Limit
1
A
∆Vo
Line Regulation
Vi =13 to 16 V,
Io = 5 mA
12
60
mV
∆Vo
Load Regulation
Vi = 13.3 V
Io = 5 to 500 mA
12
60
mV
Id
Quiescent Current
ON MODE
Vi =13 to 16 V Io =0 mA
Vi = 13.3 to 16 V
Io =500 mA
0.7
1.5
12
mA
mA
OFF MODE Vi =13 V
70
140
µA
SVR
Supply Voltage Rejection
Io = 5 mA Vi =14 V
± 1V
f = 120 Hz
f= 1 KHz
f = 10 KHz
69
64
54
dB
dB
dB
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
µV
Vd
Dropout Voltage
Io = 200 mA
Io = 500 mA
0.2
0.4
0.35
0.7
V
V
Vil
Control Input Logic Low
-40 < Ta <125
oC0.8
V
Vih
Control Input Logic High
-40 < Ta <125
oC2
V
Ii
Control Input Current
Vi =13 V,
Vc =6 V
10
µA
CO
Output Bypass Capacitance
ESR = 0.1 to 10
Ω Io = 0 to 500 mA
210
µF
ELECTRICAL CHARACTERISTICS FOR LF120C (refer to the test circuits, Tj =25
oC,
Ci = 0.1
µF, Co = 2.2 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Io =50 mA, Vi =14 V
Io =50 mA, Vi = 14 V -25<Ta<85
oC
11.76
11.52
12
12.24
12.48
V
V
Vi
Operating Input Voltage
Io = 500 mA
16
V
Iout
Output Current Limit
1
A
∆Vo
Line Regulation
Vi =13 to 16 V,
Io = 5 mA
12
60
mV
∆Vo
Load Regulation
Vi = 13.3 V
Io = 5 to 500 mA
12
60
mV
Id
Quiescent Current
ON MODE
Vi =13 to 16 V Io =0 mA
Vi = 13.3 to 16 V
Io =500 mA
0.7
1.5
12
mA
mA
OFF MODE Vi =13 V
70
140
µA
SVR
Supply Voltage Rejection
Io = 5 mA Vi =14 V
± 1V
f = 120 Hz
f= 1 KHz
f = 10 KHz
69
64
54
dB
dB
dB
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
µV
Vd
Dropout Voltage
Io = 200 mA
Io = 500 mA
0.2
0.4
0.35
0.7
V
V
Vil
Control Input Logic Low
-40 < Ta <125
oC0.8
V
Vih
Control Input Logic High
-40 < Ta <125
oC2
V
Ii
Control Input Current
Vi =13 V,
Vc =6 V
10
µA
CO
Output Bypass Capacitance
ESR = 0.1 to 10
Ω Io = 0 to 500 mA
210
µF
LF00AB/C
22/32



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