NSC LP2986AIM-3.3, LP2986AIM-3.0, LP2986IMM-3.0, LP2986IM-5.0, LP2986IM-3.0 Datasheet
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LP2986
Micropower, 200 mA Ultra Low-Dropout Fixed or
Adjustable Voltage Regulator
LP2986 Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage Regulator
March 1999
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
cess, the LP2986 delivers superior performance:
Dropout Voltage: Typically 180 mV
@
mV
1 mA load.
Ground Pin Current: Typically 1 mA
@
200 µA
Sleep Mode: The LP2986 draws less than 1 µA 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 guaranteed accuracy of 0.5%(“A” grade) and 1%(standard grade)
at room temperature.
10 mA load.
™
(Vertically Integrated PNP) pro-
@
200 mA load, and 1
@
200 mA load, and
Block Diagram
Features
n Ultra low dropout voltage
n Guaranteed 200 mA output current
n SO-8 and mini-SO8 surface mount packages
<
n
1 µA 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 −40˚C to +125˚C junction temperature range
Applications
n Cellular Phone
n Palmtop/Laptop Computer
n Camcorder, Personal Stereo, Camera
DS012935-1
VIP™is a trademark ofNational Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS012935 www.national.com
Connection Diagram and Ordering Information
Mini SO-8 Package Type MM: See NS Package Drawing Number MUA08A
SO-8 Package Type M: See NS Package Drawing Number M08A
For ordering information, refer to Table 1 of this document.
Basic Application Circuits
Application Using Internal Resistive Divider
Surface Mount Packages:
DS012935-2
Top View
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DS012935-3
Basic Application Circuits (Continued)
Application Using External Divider
Ordering Information
TABLE 1. Package Marking and Ordering Information
Output Voltage Grade Order Information Package Marking Supplied as:
5 A LP2986AIMMX-5.0 L41A 3.5k Units on Tape and Reel
5 A LP2986AIMM-5.0 L41A 250 Units on Tape and Reel
5 STD LP2986IMMX-5.0 L41B 3.5k Units on Tape and Reel
5 STD LP2986IMM-5.0 L41B 250 Units on Tape and Reel
3.3 A LP2986AIMMX-3.3 L40A 3.5k Units on Tape and Reel
3.3 A LP2986AIMM-3.3 L40A 250 Units on Tape and Reel
3.3 STD LP2986IMMX-3.3 L40B 3.5k Units on Tape and Reel
3.3 STD LP2986IMM-3.3 L40B 250 Units on Tape and Reel
3.0 A LP2986AIMMX-3.0 L39A 3.5k Units on Tape and Reel
3.0 A LP2986AIMM-3.0 L39A 250 Units on Tape and Reel
3.0 STD LP2986IMMX-3.0 L39B 3.5k Units on Tape and Reel
3.0 STD LP2986IMM-3.0 L39B 250 Units on Tape and Reel
5 A LP2986AIMX-5.0 2986AIM5.0 2.5k Units on Tape and Reel
5 A LP2986AIM-5.0 2986AIM5.0 Shipped in Anti-Static Rails
5 STD LP2986IMX-5.0 2986IM5.0 2.5k Units on Tape and Reel
5 STD LP2986IM-5.0 2986IM5.0 Shipped in Anti-Static Rails
3.3 A LP2986AIMX-3.3 2986AIM3.3 2.5k Units on Tape and Reel
3.3 A LP2986AIM-3.3 2986AIM3.3 Shipped in Anti-Static Rails
3.3 STD LP2986IMX-3.3 2986IM3.3 2.5k Units on Tape and Reel
3.3 STD LP2986IM-3.3 2986IM3.3 Shipped in Anti-Static Rails
3.0 A LP2986AIMX-3.0 2986AIM3.0 2.5k Units on Tape and Reel
3.0 A LP2986AIM-3.0 2986AIM3.0 Shipped in Anti-Static Rails
3.0 STD LP2986IMX-3.0 2986IM3.0 2.5k Units on Tape and Reel
3.0 STD LP2986IM-3.0 2986IM3.0 Shipped in Anti-Static Rails
DS012935-4
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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 −65˚C to +150˚C
Operating Junction
Temperature Range −40˚C to +125˚C
Lead Temperature
(Soldering, 5 seconds) 260˚C
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
(Survival) Short Circuit Protected
OUT
Input-Output Voltage
(Survival) (Note 5) −0.3V to +16V
ESD Rating (Note 2) 2 kV
Power Dissipation (Note 3) Internally Limited
Input Supply Voltage
(Survival) −0.3V to +16V
Electrical Characteristics
Limits in standard typeface are for TJ= 25˚C, and limits in boldface type apply over the full operating temperature range. Unless otherwise specified: VIN=VO(NOM) + 1V, IL= 1 mA, C
Symbol Parameter Conditions Typical
V
O
Output Voltage
(5.0V Versions)
0.1 mA
<
<
I
L
Output Voltage
(3.3V Versions)
0.1 mA
<
<
I
L
Output Voltage
(3.0V Versions)
Output Voltage Line
Regulation
V
IN–VO
I
GND
I
(PK) Peak Output Current V
O
(MAX) Short Circuit Current RL= 0 (Steady State)
I
O
e
n
Dropout Voltage
(Note 7)
Ground Pin Current IL= 100 µA
Output Noise Voltage
(RMS)
Ripple Rejection f = 1 kHz, C
<
0.1 mA
<
I
L
VO(NOM) + 1V ≤ VIN≤
16V
IL= 100 µA
=75mA
I
L
I
= 200 mA
L
I
=75mA
L
I
= 200 mA
L
<
0.3V 0.05 1.5 1.5 µA
V
S/D
≥ VO(NOM) − 5
OUT
(Note 11)
BW = 300 Hz to 50
OUT
=10µF
OUT
kHz, C
= 4.7 µF, CIN= 2.2 µF, V
OUT
200 mA
200 mA
200 mA
0.007
%
=10µF
= 2V.
S/D
LM2986AI-X.X
(Note 6)
LM2986I-X.X
(Note 6)
Min Max Min Max
5.0 4.975 5.025 4.950 5.050
4.960 5.040 4.920 5.080
5.0
4.910 5.090 4.860 5.140
3.3 3.283 3.317 3.267 3.333
3.274 3.326 3.247 3.353
3.3
3.241 3.359 3.208 3.392
3.0 2.985 3.015 2.970 3.030
2.976 3.024 2.952 3.048
3.0
2.946 3.054 2.916 3.084
0.014 0.014
0.032 0.032
1
90
180
100
500
1
2.0 2.0
3.5 3.5
120 120
170 170
230 230
350 350
120 120
150 150
800 800
1400 1400
2.1 2.1
3.7 3.7
400 250 250
400
160 µV(RMS)
65 dB
Units
V
%
/V
mV
µA
mA
mA
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Electrical Characteristics (Continued)
Limits in standard typeface are for TJ= 25˚C, and limits in boldface type apply over the full operating temperature range. Unless otherwise specified: VIN=VO(NOM) + 1V, IL= 1 mA, C
Symbol Parameter Conditions Typical
Output Voltage
(Note 9)
Temperature Coefficient
FEEDBACK PIN
V
FB
Feedback Pin Voltage
(Note 10) 1.23 1.19 1.28 1.18 1.29
FB Pin Voltage
(Note 9)
Temperature Coefficient
I
FB
Feedback Pin Bias
Current
FB Pin Bias Current
IL= 200 mA
(Note 9)
Temperature Coefficient
SHUTDOWN INPUT
V
S/D
I
S/D
S/D Input Voltage
(Note 8)
S/D Input Current V
VH= O/P ON 1.4 1.6 1.6
= O/P OFF 0.55 0.18 0.18
V
L
=0 0 −1 −1
S/D
=5V 5 15 15
V
S/D
ERROR COMPARATOR
I
OH
V
OL
V
THR
(MAX)
V
THR
(MIN)
Output “HIGH” Leakage VOH= 16V
Output “LOW” Voltage VIN=VO(NOM) − 0.5V,
(COMP) = 300 µA
I
O
Upper Threshold
Voltage
Lower Threshold
Voltage
HYST Hysteresis 2.0
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions.
Note 2: The ESD rating of the Feedback pin is 500V and the Tap pin is 1.5 kV.
Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, T
and the ambient temperature, T
. The maximum allowable power dissipation at any ambient temperature is calculated using:
A
= 4.7 µF, CIN= 2.2 µF, V
OUT
20 ppm/˚C
1.23
20 ppm/˚C
150
0.1 nA/˚C
0.01
150
−4.6
−6.6
= 2V.
S/D
LM2986AI-X.X
(Note 6)
LM2986I-X.X
(Note 6)
Min Max Min Max
1.21 1.25 1.20 1.26
330 330
760 760
11
22
220 220
350 350
−5.5 −3.5 −5.5 −3.5
−7.7 −2.5 −7.7 −2.5
−8.9 −4.9 −8.9 −4.9
−13.0 −3.3 −13.0 −3.3
(MAX), the junction-to-ambient thermal resistance, θ
J
%
Units
V1.20 1.26 1.19 1.27
nA
V
µA
µA
mV
V
OUT
J−A
,
The value of θ
excessive die temperature, and the regulator will go into thermal shutdown.
Note 4: If used in a dual-supply system where the regulator load is returned to a negative supply, the LM2986 output must be diode-clamped to ground.
Note 5: The output PNP structure contains a diode between the V
on this diode and may induce a latch-up mode which can damage the part (see Application Hints).
Note 6: Limits are 100%production tested at 25˚C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 7: Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below the value measured with a 1V differential.
Note 8: Toprevent mis-operation, the Shutdown input must be driven by a signal that swings above V
Application Hints).
Note 9: Temperature coefficient is defined as the maximum (worst-case) change divided by the total temperature range.
Note 10: V
Note 11: See Typical Performance Characteristics curves.
for the SO-8 (M) package is 160˚C/W,and the mini SO-8 (MM) package is 200˚C/W. Exceeding the maximum allowable power dissipation will cause
J−A
and V
terminals that is normally reverse-biased. Forcing the output above the input will turn
OUT
and below VLwith a slew rate not less than 40 mV/µs (see
H
≤ V
≤ (VIN− 1), 2.5V ≤ VIN≤ 16V, 100 µA≤ IL≤ 200 mA, TJ≤ 125˚C.
FB
OUT
IN
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