Datasheet

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range −65˚C to +150˚C
Operating Junction Temperature
Range −40˚C to +125˚C
Lead Temperature (Soldering, 5
seconds) 260˚C
ESD Rating (Note 2) 2 kV
Power Dissipation (Note 3) Internally Limited
Input Supply Voltage (Survival) −0.3V to +16V
Input Supply Voltage
(Operating) 2.1V to +16V
Sense Pin −0.3V to +6V
Output Voltage (Survival)
(Note 4) −0.3V to +16V
I
OUT
(Survival) Short Circuit
Protected
Input-Output Voltage (Survival)
(Note 5) −0.3V to +16V
Electrical Characteristics
Limits in standard typeface are for T
J
= 25˚C, and limits in boldface type apply over the full operating temperature range. Un-
less otherwise specified: V
IN
=V
O
(NOM) + 1V, I
L
= 1 mA, C
OUT
= 4.7 µF, C
IN
= 2.2 µF, V
S/D
= 2V.
Symbol Parameter Conditions Typical
LP2989AI-X.X
(Note 6)
LP2989I-X.X
(Note 6)
Units
Min Max Min Max
V
O
Output Voltage
Tolerance
−0.75 0.75 −1.25 1.25
%V
NOM
1mA
<
I
L
<
500 mA
V
O
(NOM) + 1V ≤ V
IN
≤
16V
−1.5 1.5 −2.5 2.5
−4.0 2.5 −5.0 3.5
1mA
<
I
L
<
500 mA
V
O
(NOM) + 1V ≤ V
IN
≤
16V
−25˚C ≤ T
J
≤ 125˚C
−3.5 2.5 −4.5 3.5
Output Voltage Line
Regulation
V
O
(NOM) + 1V ≤ V
IN
≤
16V
0.005
0.014 0.014
%/V
0.032 0.032
Load Regulation 1 mA
<
I
L
<
500 mA 0.4 %V
NOM
V
IN
–V
O
Dropout Voltage
(Note 7)
I
L
= 100 µA
1
33
mV
44
I
L
= 200 mA
150
200 200
300 300
I
L
= 500 mA
310
425 425
650 650
I
GND
Ground Pin Current I
L
= 100 µA
110
175 175
µA
200 200
I
L
= 200 mA
1
22
mA
3.5 3.5
I
L
= 500 mA
3
66
99
V
S/D
<
0.18V 0.5 2 2
µA
V
S/D
<
0.4V 0.05 0.8 0.8
I
O
(PK) Peak Output Current V
OUT
≥ V
O
(NOM) − 5% 800 600 600
mA
I
O
(MAX) Short Circuit Current R
L
= 0 (Steady State)
(Note 9)
1000
e
n
Output Noise Voltage
(RMS)
BW = 100 Hz to
100 kHz, C
OUT
=10µF
C
BYPASS
= .01 µF
V
OUT
= 2.5V
18 µV(RMS)
LP2989
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