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LF33ABP Datasheet(PDF) 7 Page - STMicroelectronics

Part No. LF33ABP
Description  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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LF33ABP Datasheet(HTML) 7 Page - STMicroelectronics

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LF00 SERIES
7/34
ELECTRICAL CHARACTERISTICS FOR LF18C (refer to the test circuits, Tj = 25°C, CI =0.1 µF,
CO =2.2 µF unless otherwise specified.)
ELECTRICAL CHARACTERISTICS FOR LF25AB (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 = 3.5 V
1.764
1.8
1.836
V
IO = 50 mA, VI =3.5 V, Ta = -25 to 85°C
1.728
1.872
VI
Operating Input Voltage
IO = 500 mA
3
16
V
IO
Output Current Limit
1
A
∆V
O
Line Regulation
VI = 2.8 to 16 V,
IO = 5 mA
2
12
mV
∆V
O
Load Regulation
VI = 3.3 V,
IO = 5 to 500 mA
2
10
mV
Id
Quiescent Current
VI = 2.5 to 16V, IO = 0mA
ON MODE
0.5
1
mA
VI = 3.1 to 16V, IO = 500mA
12
VI = 6 V
OFF MODE
50
100
µA
SVR
Supply Voltage Rejection
IO =5mA
VI = 3.5 ± 1 V
f = 120 Hz
82
dB
f= 1KHz
77
f = 10 KHz
60
eN
Output Noise Voltage
B = 10 Hz to 100 KHz
50
µV
Vd
Dropout Voltage
IO = 200 mA
0.7
V
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
IO =0 to 500mA
2
10
µF
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
IO = 50 mA, VI = 4.5 V
2.475
2.5
2.525
V
IO = 50 mA, VI =4.5 V, Ta = -25 to 85°C
2.450
2.550
VI
Operating Input Voltage
IO = 500 mA
16
V
IO
Output Current Limit
1
A
∆V
O
Line Regulation
VI = 3.5 to 16 V,
IO = 5 mA
2
12
mV
∆V
O
Load Regulation
VI = 3.8 V,
IO = 5 to 500 mA
2
12
mV
Id
Quiescent Current
VI = 3.5 to 16V, IO = 0mA
ON MODE
0.5
1
mA
VI = 3.8 to 16V, IO = 500mA
12
VI = 6 V
OFF MODE
50
100
µA
SVR
Supply Voltage Rejection
IO =5mA
VI = 4.5 ± 1 V
f = 120 Hz
82
dB
f= 1KHz
77
f = 10 KHz
65
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
IO =0 to 500mA
2
10
µF


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