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L4931 Datasheet(PDF) 6 Page - STMicroelectronics

Part # L4931
Description  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4931 Datasheet(HTML) 6 Page - STMicroelectronics

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L4931 SERIES
6/29
ELECTRICAL CHARACTERISTICS OF L4931Cxx15 (refer to the test circuits, TJ = 25°C,
CI =0.1 µF, CO = 2.2 µF unless otherwise specified).
(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
ELECTRICAL CHARACTERISTICS OF L4931ABxx25 (refer to the test circuits, TJ = 25°C,
CI =0.1 µF, CO = 2.2 µF unless otherwise specified).
(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
IO =5mA
VI = 3.5 V
1.47
1.5
1.53
V
IO =5mA
VI =3.5 V
TA=-25 to 85°C
1.44
1.56
VI
Operating Input Voltage
IO = 250 mA
2.5
20
V
Iout
Output Current Limit
300
mA
∆V
O
Line Regulation
VI = 2.5 to 20 V
IO =0.5 mA
3
18
mV
∆V
O(*)
Load Regulation
VI =2.7 V
IO = 0.5 to 250 mA
3
18
mV
Id
Quiescent Current
ON MODE
VI = 2.7 to 20 V
IO = 0 mA
0.61mA
VI = 2.7 to 20 V
IO = 250 mA
4
6
OFF MODE
VI =6 V
50
100
µA
SVR
Supply Voltage Rejection
IO =5mA
VI =3.7 ± 1 V
f = 120 Hz
79
dB
f= 1KHz
76
f= 10 KHz
55
eN
Output Noise Voltage
B =10 Hz to 100 KHz
50
µV
Vd(*)
Dropout Voltage
IO = 250 mA
1
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 250 mA
2
10
µF
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
IO =5mA
VI = 4.5 V
2.475
2.5
2.525
V
IO =5mA
VI =4.5 V
TA=-25 to 85°C
2.45
2.55
VI
Operating Input Voltage
IO = 250 mA
20
V
Iout
Output Current Limit
300
mA
∆V
O
Line Regulation
VI = 3.2 to 20 V
IO =0.5 mA
3
15
mV
∆V
O(*)
Load Regulation
VI =3.4 V
IO = 0.5 to 250 mA
3
15
mV
Id
Quiescent Current
ON MODE
VI = 3.4 to 20 V
IO = 0 mA
0.61mA
VI = 3.4 to 20 V
IO = 250 mA
4
6
OFF MODE
VI =6 V
50
100
µA
SVR
Supply Voltage Rejection
IO =5mA
VI =4.4 ± 1 V
f = 120 Hz
75
dB
f= 1KHz
72
f= 10 KHz
55
eN
Output Noise Voltage
B =10 Hz to 100 KHz
50
µV
Vd(*)
Dropout Voltage
IO = 250 mA
0.4
0.6
V
IO = 250 mA
TJ= -40 to 125°C
0.8
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 250 mA
2
10
µF


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