LP2952/LP2952A/LP2953/LP2953A
All Voltage Options
(Continued)
Electrical Characteristics
(Continued)
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.
Parameter
Conditions
Typical LP2952AI, LP2953AI, LP2952I, LP2953I,
LP2952AI-3.3,
LP2952I-3.3,
LP2953AI-3.3,
LP2953I-3.3
LP2953AM
(Notes 16, 17)
Min
Output Voltage Load
Regulation (Note 6)
I
L
= 1 mA to 250 mA
I
L
= 0.1 mA to 1 mA
I
L
= 1 mA
I
L
= 50 mA
I
L
= 100 mA
I
L
= 250 mA
60
240
310
470
130
1.1
4.5
21
165
105
380
0.05
0.04
Max
0.16
0.20
100
150
300
420
400
520
600
800
170
200
I
L
= 50 mA
I
L
= 100 mA
I
L
= 250 mA
2
2.5
6
8
28
33
210
240
140
500
530
Thermal Regulation
0.2
Min
Max
0.20
0.30
100
150
300
420
400
520
600
800
170
200
2
2.5
6
8
28
33
210
240
140
500
530
0.2
%/W
µA
mA
µA
mA
µA
mV
%
Units
Symbol
V
IN
–V
O
Dropout Voltage
I
GND
Ground Pin Current
I
L
= 1 mA
I
GND
I
GND
I
LIMIT
Ground Pin Current at
Dropout
Ground Pin Current at
Shutdown (Note 8)
Current Limit
V
IN
= V
O
(NOM) −0.5V
I
L
= 100 µA
V
SHUTDOWN
≤
1.1V
V
OUT
= 0
e
n
Output Noise Voltage
(10 Hz to 100 kHz)
I
L
= 100 mA
Reference Voltage
Reference Voltage Line
Regulation
C
L
= 4.7 µF
C
L
= 33 µF
C
L
= 33 µF (Note 11)
V
IN
= 2.5V to V
O
(NOM) + 1V
V
IN
= V
O
(NOM) + 1V to 30V
400
260
80
1.230
0.03
1.215
1.205
1.245
1.255
0.1
0.2
0.25
0.4
0.6
20
1.205
1.190
1.255
1.270
0.2
0.4
0.8
1.0
µV
RMS
V
%
V
REF
Reference Voltage Load I
REF
= 0 to 200 µA
Regulation
Reference Voltage
Temp. Coefficient
%
ppm/˚C
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