LP2986
Micropower, 200 mA Ultra Low-Dropout Fixed or
Adjustable Voltage Regulator
General Description
The LP2986 is a 200 mA precision LDO voltage regulator
which offers the designer a higher performance version of
the industry standard LP2951.
Using an optimized VIP
TM
(Vertically Integrated PNP) pro-
cess, the LP2986 delivers superior performance:
Dropout Voltage: Typically 180 mV
@
200 mA load, and 1
mV
@
1 mA load.
Ground Pin Current: Typically 1 mA
@
200 mA load, and
200 A
@
10 mA load.
Sleep Mode: The LP2986 draws less than 1 A quiescent
current when shutdown pin is pulled low.
Error Flag: The built-in error flag goes low when the output
drops approximately 5% below nominal.
Precision Output: The standard product versions available
can be pin-strapped (using the internal resistive divider) to
provide output voltages of 5.0V, 3.3V, or 3.0V with guaran-
teed accuracy of 0.5% ("A" grade) and 1% (standard grade)
at room temperature.
Features
n
Ultra low dropout voltage
n
Guaranteed 200 mA output current
n
SO-8 and mini-SO8 surface mount packages
n
<
1 A quiescent current when shutdown
n
Low ground pin current at all loads
n
0.5% output voltage accuracy ("A" grade)
n
High peak current capability (400 mA typical)
n
Wide supply voltage range (16V max)
n
Overtemperature/overcurrent protection
n
-40C to +125C junction temperature range
Applications
n
Cellular Phone
n
Palmtop/Laptop Computer
n
Camcorder, Personal Stereo, Camera
Block Diagram
01293501
VIP
TM
is a trademark of National Semiconductor Corporation.
January 2002
LP2986
Micropower
,
200
mA
Ultra
Low-Dropout
Fixed
or
Adjustable
V
oltage
Regulator
2002 National Semiconductor Corporation
DS012935
www.national.com
Connection Diagrams and Ordering Information
Surface Mount Packages:
8-Lead LLP Surface Mount Package
01293502
SO-8/Mini SO-8 Package
See NS Package Drawing Number M08A/MUA08A
01293543
Top View
See NS Package Drawing Number LDC08A
Basic Application Circuits
Application Using Internal Resistive Divider
01293503
LP2986
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2
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
-65C to +150C
Operating Junction
Temperature Range
-40C to +125C
Lead Temperature
(Soldering, 5 seconds)
260C
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
Shutdown Pin
-0.3V to +16V
Feedback Pin
-0.3V to +5V
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
= 25C, 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 F, C
IN
= 2.2 F, V
S/D
= 2V.
Symbol
Parameter
Conditions
Typical
LM2986AI-X.X
(Note 6)
LM2986I-X.X
(Note 6)
Units
Min
Max
Min
Max
V
O
Output Voltage
(5.0V Versions)
5.0
4.975
5.025
4.950
5.050
V
0.1 mA
<
I
L
<
200 mA
5.0
4.960
5.040
4.920
5.080
4.910
5.090
4.860
5.140
Output Voltage
(3.3V Versions)
3.3
3.283
3.317
3.267
3.333
0.1 mA
<
I
L
<
200 mA
3.3
3.274
3.326
3.247
3.353
3.241
3.359
3.208
3.392
Output Voltage
(3.0V Versions)
3.0
2.985
3.015
2.970
3.030
0.1 mA
<
I
L
<
200 mA
3.0
2.976
3.024
2.952
3.048
2.946
3.054
2.916
3.084
Output Voltage Line
Regulation
V
O
(NOM) + 1V
V
IN
16V
0.007
0.014
0.014
%/V
0.032
0.032
V
IN
V
O
Dropout Voltage
(Note 7)
I
L
= 100 A
1
2.0
2.0
mV
3.5
3.5
I
L
= 75 mA
90
120
120
170
170
I
L
= 200 mA
180
230
230
350
350
I
GND
Ground Pin Current
I
L
= 100 A
100
120
120
A
150
150
I
L
= 75 mA
500
800
800
1400
1400
I
L
= 200 mA
1
2.1
2.1
mA
3.7
3.7
V
S/D
<
0.3V
0.05
1.5
1.5
A
I
O
(PK)
Peak Output Current
V
OUT
V
O
(NOM) - 5%
400
250
250
mA
I
O
(MAX)
Short Circuit Current
R
L
= 0 (Steady State)
(Note 11)
400
e
n
Output Noise Voltage
(RMS)
BW = 300 Hz to 50 kHz,
C
OUT
= 10 F
160
V(RMS)
Ripple Rejection
f = 1 kHz, C
OUT
= 10 F
65
dB
LP2986
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