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| LP2989LV Datasheet, PDF (4/11 Pages) National Semiconductor (TI) – Micropower 500 mA Low Noise Low Dropout Regulator for Applications with Output Voltages < 2V Designed for Use with Very Low ESR Output Capacitors | |||
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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
Operating Junction Temperature
Range
Lead Temperature (Soldering, 5
seconds)
ESD Rating (Note 2)
Power Dissipation (Note 3)
â65ËC to +150ËC
â40ËC to +125ËC
260ËC
2 kV
Internally Limited
Input Supply Voltage (Survival)
Input Supply Voltage
(Operating)
Sense Pin
Output Voltage (Survival)
(Note 4)
IOUT (Survival)
Input-Output Voltage (Survival)
(Note 5)
â0.3V to +16V
2.1V to +16V
â0.3V to +6V
â0.3V to +16V
Short Circuit
Protected
â0.3V to +16V
Electrical Characteristics
Limits in standard typeface are for TJ = 25ËC, and limits in boldface type apply over the full operating temperature range. Un-
less otherwise specified: VIN = VO(NOM) + 1V, IL = 1 mA, COUT = 10 µF, CIN = 2.2 µF, VS/D = 2V.
LP2989AI-X.X
LP2989I-X.X
Symbol
Parameter
Conditions
Typical
(Note 6)
(Note 6)
Units
Min
Max
Min
Max
VO
Output Voltage
â0.75 0.75 â1.25 1.25
Tolerance
1 mA < IL < 500 mA
â1.5
1.5
â2.5
2.5
VO(NOM) + 1V ⤠VIN ⤠16V
1 mA < IL < 500 mA
â4.0
2.5
â5.0
3.5
%VNOM
â3.5
2.5
â4.5
3.5
VO(NOM) + 1V ⤠VIN ⤠16V
â25ËC ⤠TJ ⤠125ËC
Output Voltage Line
Regulation
VO(NOM) + 1V ⤠VIN ⤠16V
0.005
0.014
0.032
0.014
%/V
0.032
Load Regulation
1 mA < IL < 500 mA
0.4
%VNOM
VIN (min)
IGND
Minimum Input Voltage
Required To Maintain
Output Regulation
Ground Pin Current
VOUT = 1.8
IL ⤠50 mA
VOUT = 1.8
IL = 250 mA
VOUT = 1.8
IL = 500 mA
IL = 100 µA
1.96
1.98
V
2.11
175
175
110
µA
200
200
IL = 200 mA
IL = 500 mA
2
2
1
3.5
3.5
mA
6
6
3
9
9
VS/D < 0.18V
VS/D < 0.4V
0.5
2
0.05
0.8
2
µA
0.8
IO(PK)
Peak Output Current
VOUT ⥠VO(NOM) â 5%
800
600
600
IO(MAX) Short Circuit Current
RL = 0 (Steady State) (Note 1000
mA
8)
en
Output Noise Voltage BW = 100 Hz to 100 kHz,
18
(RMS)
CBYPASS = .01 µF
Ripple Rejection
f = 1 kHz
60
µV(RMS)
dB
Output Voltage
(Note 7)
Temperature Coefficient
20
ppm/ËC
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