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LF45ABP 数据表(PDF) 21 Page - STMicroelectronics

部件名 LF45ABP
功能描述  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
PDF  34 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LF45ABP 数据表(HTML) 21 Page - STMicroelectronics

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LF00 SERIES
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ELECTRICAL CHARACTERISTICS FOR LF85C (refer to the test circuits, Tj = 25°C, CI =0.1 µF,
CO =2.2 µF unless otherwise specified.)
ELECTRICAL CHARACTERISTICS FOR LF90AB (refer to the test circuits, Tj =25°C, 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 = 10.5 V
8.33
8.5
8.67
V
IO = 50 mA, VI =10.5V,Ta = -25 to 85°C
8.16
8.84
VI
Operating Input Voltage
IO = 500 mA
16
V
IO
Output Current Limit
1
A
∆V
O
Line Regulation
VI = 9.5 to 16 V,
IO = 5 mA
8
42
mV
∆V
O
Load Regulation
VI = 9.8 V,
IO = 5 to 500 mA
8
42
mV
Id
Quiescent Current
VI = 9.5 to 16V, IO = 0mA
ON MODE
0.7
1.5
mA
VI = 9.8 to 16V, IO = 500mA
12
VI = 9 V
OFF MODE
70
140
µA
SVR
Supply Voltage Rejection
IO =5mA
VI = 10.5 ± 1 V
f = 120 Hz
72
dB
f= 1KHz
67
f = 10 KHz
57
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
µV
Vd
Dropout Voltage
IO = 200 mA
0.2
0.35
V
IO = 500 mA
0.4
0.7
VIL
Control Input Logic Low
Ta = -40 to 125°C
0.8
V
VIH
Control Input Logic High
Ta = -40 to 125°C
2
V
II
Control Input Current
VI =9 V,
VC =6V
10
µA
CO
Output Bypass Capacitance ESR = 0.1 to 10
Ω
IO =0 to 500mA
2
10
µF
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
IO = 50 mA, VI = 11 V
8.91
9
9.09
V
IO = 50 mA, VI =11V,Ta = -25 to 85°C
8.82
9.18
VI
Operating Input Voltage
IO = 500 mA
16
V
IO
Output Current Limit
1
A
∆V
O
Line Regulation
VI =10 to16 V,
IO = 5 mA
9
45
mV
∆V
O
Load Regulation
VI = 10.3 V,
IO = 5 to 500 mA
9
45
mV
Id
Quiescent Current
VI =10 to16V, IO = 0mA
ON MODE
0.7
1.5
mA
VI = 10.3 to 16V,IO = 500mA
12
VI = 10 V
OFF MODE
70
140
µA
SVR
Supply Voltage Rejection
IO =5mA
VI = 11±1V
f = 120 Hz
71
dB
f= 1KHz
66
f = 10 KHz
56
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
µV
Vd
Dropout Voltage
IO = 200 mA
0.2
0.35
V
IO = 500 mA
0.4
0.7
VIL
Control Input Logic Low
Ta = -40 to 125°C
0.8
V
VIH
Control Input Logic High
Ta = -40 to 125°C
2
V
II
Control Input Current
VI =10 V,
VC =6V
10
µA
CO
Output Bypass Capacitance ESR = 0.1 to 10
Ω
IO =0 to 500mA
2
10
µF



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