LP2957AIS National Semiconductor, LP2957AIS Datasheet - Page 2

• Manufacturer Part Number: LP2957AIS
• Description: 5V Low-Dropout Regulator for P Applications
• Manufacturer: National Semiconductor

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V
V
I
I
I
I
(Sink)
I
(Off)
I
GND
GND
GND
O
O
LIMIT
Limits in standard typeface are for T
less otherwise specified: V
Electrical Characteristics
O
IN
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Operating Junction
Storage Temperature Range
Symbol
–V
Temperature Range
O
Output Voltage
(Note 9)
Output Voltage
Temperature
Coefficient
Line Regulation
Load Regulation
Dropout Voltage
(Note 5)
Ground Pin Current
(Note 6)
Ground Pin Current
in Shutdown (Note 6)
Ground Pin Current
at Dropout (Note 6)
Off-State Output
Pulldown Current
Output Leakage
in Shutdown
Current Limit
Thermal Regulation
Parameter
IN
= 6V, I
L
J
= 1 mA, C
= 25˚C, and limits in boldface type apply over the full operating temperature range. Un-
1 mA
(Note 3)
V
I
I
(Note 4)
I
I
I
I
I
I
I
I
I
V
V
I
V
V
I
V
R
(Note 7)
L
L
L
L
L
L
L
L
L
L
L
L
(SD IN)
IN
SD
IN
IN
O
IN
L
−40˚C to +125˚C
−65˚C to +150˚C
= 1 mA to 250 mA
= 0.1 mA to 1 mA
= 1 mA
= 50 mA
= 100 mA
= 250 mA
= 1 mA
= 50 mA
= 100 mA
= 250 mA
= 0
= 0.1 mA
= 1
= 5V, V
= 6V to 30V
= 4.5V
= 5.3V
= 30V, V
= 0.4V
(Note 1)
Conditions
L
I
= 2.2 µF, V
L
1 µA
SD
250 mA
OUT
= 0.4V
= 0V
SD
2
= 3V.
Lead Temperature
Power Dissipation (Note 2)
Input Supply Voltage
Shutdown Input
ESD Rating
Typical
(Soldering, 5 Seconds)
0.03
0.04
0.05
240
310
470
150
130
180
400
5.0
5.0
1.1
20
60
16
50
3
3
4.975
4.940
4.930
Min
30
20
LP2957AI
5.025
5.060
5.070
Max
0.10
0.20
0.16
0.20
100
100
150
300
420
400
520
600
800
200
230
180
200
230
250
500
530
2.5
0.2
28
33
10
20
2
6
8
4.950
4.900
4.880
Min
30
20
LP2957I
Internally Limited
5.050
5.100
5.120
Max
0.20
0.40
0.20
0.30
150
100
150
300
420
400
520
600
800
200
230
180
200
230
250
500
530
2.5
0.2
−0.3V to +30V
28
33
10
20
−20V to +30V
2
6
8
ppm/˚C
260˚C
Units
%/W
2 kV
mV
mA
mA
mA
µA
µA
µA
µA
%
%
V