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LF45ABP Datasheet(PDF) 17 Page - STMicroelectronics

No. de pieza LF45ABP
Descripción Electrónicos  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
PDF  34 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LF45ABP Datasheet(HTML) 17 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS FOR LF52C (refer to the test circuits, Tj = 25°C, CI =0.1 µF,
CO =2.2 µF unless otherwise specified.)
ELECTRICAL CHARACTERISTICS FOR LF55AB (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 = 7.2 V
5.096
5.2
5.304
V
IO = 50 mA, VI =7.2 V, Ta = -25 to 85°C
4.992
5.408
VI
Operating Input Voltage
IO = 500 mA
16
V
IO
Output Current Limit
1
A
∆V
O
Line Regulation
VI = 6.2 to 16 V,
IO = 5 mA
5
26
mV
∆V
O
Load Regulation
VI = 6.5 V,
IO = 5 to 500 mA
5
26
mV
Id
Quiescent Current
VI = 6.2 to 16V, IO = 0mA
ON MODE
0.5
1
mA
VI = 6.5 to 16V, IO = 500mA
12
VI = 6 V
OFF MODE
50
100
µA
SVR
Supply Voltage Rejection
IO =5mA
VI = 7.2 ± 1 V
f = 120 Hz
76
dB
f= 1KHz
71
f = 10 KHz
60
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 =6 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 = 7.5 V
5.445
5.5
5.555
V
IO = 50 mA, VI =7.5 V, Ta = -25 to 85°C
5.39
5.61
VI
Operating Input Voltage
IO = 500 mA
16
V
IO
Output Current Limit
1
A
∆V
O
Line Regulation
VI = 6.5 to 16 V,
IO = 5 mA
5
27
mV
∆V
O
Load Regulation
VI = 6.8 V,
IO = 5 to 500 mA
5
27
mV
Id
Quiescent Current
VI = 6.5 to 16V, IO = 0mA
ON MODE
0.5
1
mA
VI = 6.8 to 16V, IO = 500mA
12
VI = 6 V
OFF MODE
50
100
µA
SVR
Supply Voltage Rejection
IO =5mA
VI = 7.5 ± 1 V
f = 120 Hz
76
dB
f= 1KHz
71
f = 10 KHz
60
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 =6 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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