LP2952/LP2952A/LP2953/LP2953A
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Operating Temperature Range
LP2952I, LP2953I, LP2952AI,
LP2953AI, LP2952I-3.3,
LP2953I-3.3, LP2952AI-3.3,
LP2953AI-3.3
LP2953AM
Lead Temp. (Soldering, 5 seconds)
Power Dissipation (Note 2)
−65˚C
≤
T
A
≤
+150˚C
Maximum Junction Temperature
LP2952I, LP2953I, LP2952AI,
LP2953AI, LP2952I-3.3,
LP2953I-3.3, LP2952AI-3.3,
LP2953AI-3.3
LP2953AM
Input Supply Voltage
Feedback Input Voltage (Note 3)
Comparator Input Voltage (Note 4)
Shutdown Input Voltage (Note 4)
Comparator Output Voltage (Note
ESD Rating (Note 15)
+125˚C
+150˚C
−20V to +30V
−0.3V to +5V
−0.3V to +30V
−0.3V to +30V
−0.3V to +30V
2 kV
−40˚C
≤
T
J
≤
+125˚C
−55˚C
≤
T
A
≤
+125˚C
260˚C
Internally Limited
Limits in standard typeface are for T
J
= 25˚C,
bold typeface
applies over the full
operating temperature range. Limits are guaranteed by production testing or correlation techniques using standard Statistical
Quality Control (SQC) methods. Unless otherwise specified: V
IN
= V
O
(NOM) + 1V, I
L
= 1 mA, C
L
= 2.2 µF for 5V parts and
4.7µF for 3.3V parts. Feedback pin is tied to V Tap pin, Output pin is tied to Output Sense pin.
Electrical Characteristics
3.3V Versions
Symbol
V
O
Parameter
Output Voltage
1 mA
≤
I
L
≤
250 mA
Conditions
Typical
3.3
3.3
LP2952AI-3.3, LP2953AI-3.3
Min
3.284
3.260
3.254
Max
3.317
3.340
3.346
LP2952I-3.3, LP2953I-3.3
Min
3.267
3.234
3.221
Max
3.333
3.366
3.379
V
Units
5V Versions
Symbol
Parameter
Conditions
Typical
LP2952AI, LP2953AI,
LP2953AM
Min
V
O
Output Voltage
1 mA
≤
I
L
≤
250 mA
5.0
5.0
4.975
4.940
4.930
Max
5.025
5.060
5.070
Min
4.950
4.900
4.880
Max
5.050
5.100
5.120
V
LP2952I, LP2953I
Units
All Voltage Options
Electrical Characteristics
Limits in standard typeface are for T
J
= 25˚C,
bold typeface
applies over the full operating temperature range. Limits are guar-
anteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless other-
wise specified: V
IN
= V
O
(NOM) + 1V, I
L
= 1 mA, C
L
= 2.2 µF for 5V parts and 4.7µF for 3.3V parts. Feedback pin is tied to V
Tap pin, Output pin is tied to Output Sense pin.
Symbol
Parameter
Conditions
Typical LP2952AI, LP2953AI, LP2952I, LP2953I,
LP2952AI-3.3,
LP2952I-3.3,
LP2953AI-3.3,
LP2953I-3.3
LP2953AM
(Notes 16, 17)
Min
REGULATOR
Output Voltage Temp.
Coefficient
Output Voltage Line
Regulation
20
100
150
ppm/˚C
Max
Min
Max
Units
V
IN
= V
O
(NOM) + 1V to 30V
0.03
0.1
0.2
0.2
0.4
%
3
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