NSC LP2982AIM5-3.8

LP2982
Micropower 50 mA Ultra Low-Dropout Regulator
General Description
Features
The LP2982 is a 50 mA, fixed-output voltage regulator designed to provide ultra low dropout and lower noise in battery
powered applications.
Using an optimized VIP™ (Vertically Integrated PNP) process, the LP2982 delivers unequaled performance in all
specifications critical to battery-powered designs:
Dropout Voltage: Typically 120 mV @ 50 mA load, and 7 mV
@ 1 mA load.
Ground Pin Current: Typically 375 µA @ 50 mA load, and
80 µA @ 1 mA load.
Sleep Mode: Less than 1 µA quiescent current when on/off
pin is pulled low.
Smallest Possible Size: SOT-23 and micro SMD packages
use absolute minimum board space.
Precision Output: 1.0% tolerance output voltages available
(A grade).
Low Noise: By adding an external bypass capacitor, output
noise can be reduced to 30 µV (typical).
Ten output voltage versions, from 2.5V to 5.0V, are available
as standard products.
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Ultra low dropout voltage
Guaranteed 50 mA output current
Typical dropout voltage 180 mV @ 80 mA
Smallest possible size (SOT-23, micro SMD package)
Requires minimum external components
< 1 µA quiescent current when shutdown
Low ground pin current at all loads
Output voltage accuracy 1.0% (A Grade)
High peak current capability (150 mA typical)
Wide supply voltage range (16V max)
Low ZOUT 0.3Ω typical (10 Hz to 1 MHz)
Overtemperature/overcurrent protection
−40˚C to +125˚C junction temperature range
Custom voltages available
Applications
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Cellular Phone
Palmtop/Laptop Computer
Personal Digital Assistant (PDA)
Camcorder, Personal Stereo, Camera
Block Diagram
DS012679-1
VIP™ is a trademark of National Semiconductor Corporation.
© 2000 National Semiconductor Corporation
DS012679
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LP2982 Micropower 50 mA Ultra Low-Dropout Regulator
March 2000
LP2982
Connection Diagrams
5-Lead Small Outline Package (M5)
micro SMD, 5 Bump Package (BPA05)
DS012679-55
DS012679-3
Bottom View
See NS Package Number BPA05
Top View
See NS Package Number MF05A
For ordering information see Table 1
Basic Application Circuit
DS012679-2
*ON/OFF input must be actively terminated. Tie to VIN if this function is not to be used.
**Minimum capacitance is shown to insure stability over full load current range. More capacitance provides superior dynamic performance (see Application
Hints).
***See Application Hints.
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LP2982
Ordering Information
TABLE 1. Package Marking and Ordering Information
Output Voltage
(V)
Grade
Package
Marking
Order Information
Supplied as:
5-Lead Small Outline Package (M5)
2.5
A
LP2982AIM5X-2.5
L58A
3000 Units on Tape and Reel
2.5
A
LP2982AIM5-2.5
L58A
1000 Units on Tape and Reel
2.5
STD
LP2982IM5X-2.5
L58B
3000 Units on Tape and Reel
2.5
STD
LP2982IM5-2.5
L58B
1000Units on Tape and Reel
2.6
A
LP2982AIM5X-2.6
LBYA
3000 Units on Tape and Reel
2.6
A
LP2982AIM5-2.6
LBYA
1000 Units on Tape and Reel
2.6
STD
LP2982IM5X-2.6
LBYB
3000 Units on Tape and Reel
2.6
STD
LP2982IM5-2.6
LBYB
1000Units on Tape and Reel
2.8
A
LP2982AIM5X-2.8
L60A
3000 Units on Tape and Reel
2.8
A
LP2982AIM5-2.8
L60A
1000 Units on Tape and Reel
2.8
STD
LP2982IM5X-2.8
L60B
3000 Units on Tape and Reel
2.8
STD
LP2982IM5-2.8
L60B
1000 Units on Tape and Reel
3.0
A
LP2982AIM5X-3.0
L20A
3000 Units on Tape and Reel
3.0
A
LP2982AIM5-3.0
L20A
1000 Units on Tape and Reel
3.0
STD
LP2982IM5X-3.0
L20B
3000 Units on Tape and Reel
3.0
STD
LP2982IM5-3.0
L20B
1000 Units on Tape and Reel
3.3
A
LP2982AIM5X-3.3
L19A
3000 Units on Tape and Reel
3.3
A
LP2982AIM5-3.3
L19A
1000 Units on Tape and Reel
3.3
STD
LP2982IM5X-3.3
L19B
3000 Units on Tape and Reel
3.3
STD
LP2982IM5-3.3
L19B
1000 Units on Tape and Reel
3.6
A
LP2982AIM5X-3.6
L0BA
3000 Units on Tape and Reel
3.6
A
LP2982AIM5-3.6
L0BA
1000 Units on Tape and Reel
3.6
STD
LP2982IM5X-3.6
L0BB
3000 Units on Tape and Reel
3.6
STD
LP2982IM5-3.6
L0BB
1000 Units on Tape and Reel
3.8
A
LP2982AIM5X-3.8
L76A
3000 Units on Tape and Reel
3.8
A
LP2982AIM5-3.8
L76A
1000 Units on Tape and Reel
3.8
STD
LP2982IM5X-3.8
L76B
3000 Units on Tape and Reel
3.8
STD
LP2982IM5-3.8
L76B
1000 Units on Tape and Reel
4.0
A
LP2982AIM5X-4.0
L29A
3000 Units on Tape and Reel
4.0
A
LP2982AIM5-4.0
L29A
1000 Units on Tape and Reel
4.0
STD
LP2982IM5X-4.0
L29B
3000 Units on Tape and Reel
4.0
STD
LP2982IM5-4.0
L29B
1000 Units on Tape and Reel
4.5
A
LP2982AIM5X-4.5
LA8A
3000 Units on Tape and Reel
4.5
A
LP2982AIM5-4.5
LA8A
1000 Units on Tape and Reel
4.5
STD
LP2982IM5X-4.5
LA8B
3000 Units on Tape and Reel
4.5
STD
LP2982IM5-4.5
LA8B
1000 Units on Tape and Reel
4.7
A
LP2982AIM5X-4.7
L0HA
3000 Units on Tape and Reel
4.7
A
LP2982AIM5-4.7
L0HA
1000 Units on Tape and Reel
4.7
STD
LP2982IM5X-4.7
L0HB
3000 Units on Tape and Reel
4.7
STD
LP2982IM5-4.7
L0HB
1000 Units on Tape and Reel
5.0
A
LP2982AIM5X-5.0
L18A
3000 Units on Tape and Reel
5.0
A
LP2982AIM5-5.0
L18A
1000 Units on Tape and Reel
5.0
STD
LP2982IM5X-5.0
L18B
3000 Units on Tape and Reel
5.0
STD
LP2982IM5-5.0
L18B
1000 Units on Tape and Reel
5.3
A
LP2982AIM5X-5.3
LBZA
3000 Units on Tape and Reel
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LP2982
Ordering Information
(Continued)
TABLE 1. Package Marking and Ordering Information (Continued)
Output Voltage
(V)
Grade
Package
Marking
Order Information
Supplied as:
5-Lead Small Outline Package (M5)
5.3
A
LP2982AIM5-5.3
LBZA
1000 Units on Tape and Reel
5.3
STD
LP2982IM5X-5.3
LBZB
3000 Units on Tape and Reel
5.3
STD
LP2982IM5-5.3
LBZB
1000 Units on Tape and Reel
micro SMD, 5 Bump Package (BPA05)
2.8
A
LP2982AIBP-2.8
250 Units on Tape and Reel
2.8
A
LP2982AIBPX-2.8
3000 Units on Tape and Reel
2.8
STD
LP2982IBP-2.8
250 Units on Tape and Reel
2.8
STD
LP2982IBPX-2.8
3000 Units on Tape and Reel
3.0
A
LP2982AIBP-3.0
250 Units on Tape and Reel
3.0
A
LP2982AIBPX-3.0
3000 Units on Tape and Reel
3.0
STD
LP2982IBP-3.0
250 Units on Tape and Reel
3.0
STD
LP2982IBPX-3.0
3000 Units on Tape and Reel
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Power Dissipation (Note 3)
Internally Limited
Input Supply Voltage (Survival)
−0.3V to +16V
Input Supply Voltage (Operating)
2.1V to +16V
Shutdown Input Voltage (Survival)
−0.3V to +16V
Output Voltage (Survival, (Note 4))
−0.3V to +9V
Short Circuit Protected
IOUT (Survival)
Input-Output Voltage (Survival, (Note 5))
−0.3V to +16V
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 sec.)
ESD Rating (Note 2)
−65˚C to +150˚C
−40˚C to +125˚C
260˚C
2 kV
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, CIN = 1 µF, COUT = 4.7 µF, VON/OFF = 2V.
Symbol
∆VO
VIN–VO
Parameter
Output Voltage
Tolerance
Conditions
Typ
LP2982AI-X.X
LP2982I-X.X
(Note 6)
(Note 6)
Min
Max
Min
Max
IL = 1 mA
−1.0
+1.0
−1.5
+1.5
1 mA < IL < 50 mA
−1.5
+1.5
−2.0
+2.0
−2.0
+2.0
−3.5
+3.5
Output Voltage Line
Regulation
VO(NOM) + 1V ≤ VIN ≤ 16V
Dropout Voltage
IL = 0
0.007
1
(Note 7)
IGND
Ground Pin Current
3
5
5
10
10
15
15
IL = 10 mA
40
60
60
90
90
IL = 50 mA
120
150
150
225
225
IL = 0
65
80
140
IL = 50 mA
375
VON/OFF < 0.3V
0.01
95
95
125
125
110
110
170
170
220
220
460
460
600
600
1200
1200
0.8
0.8
VON/OFF < 0.15V
0.10
ON/OFF Input Voltage
High = O/P ON
1.4
(Note 8)
Low = O/P OFF
0.55
0.15
0.15
VON/OFF = 0
0.01
−2
−2
5
15
15
ON/OFF Input Current
VON/OFF = 5V
IO(PK)
Peak Output Current
VOUT ≥ VO(NOM) − 5%
150
VIN–VO
Dropout Voltage
IL = 80 mA
180
IGND
Ground Pin Current
IL = 80 mA
525
en
3
7
IL = 10 mA
ION/OFF
0.014
0.032
IL = 1 mA
IL = 1 mA
VON/OFF
0.014
0.032
Output Noise Voltage
(RMS)
2.0
1.6
%VNOM
%/V
mV
µA
2.0
1.6
100
Units
100
V
µA
mA
225
225
325
325
750
750
1400
1400
mV
µA
µV
BW = 300 Hz–50 kHz,
COUT = 10 µF
CBYPASS = 0.01 µF
30
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LP2982
Absolute Maximum Ratings (Note 1)
LP2982
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, CIN = 1 µF, COUT = 4.7 µF, VON/OFF = 2V.
Symbol
Parameter
Conditions
Typ
LP2982AI-X.X
LP2982I-X.X
(Note 6)
(Note 6)
Min
Ripple Rejection
IO(MAX)
Short Circuit Current
Max
Min
Units
Max
f = 1 kHz
COUT = 10 µF
45
dB
RL = 0 (Steady State)
(Note 9)
150
mA
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 pins 3 and 4 is 1 kV.
Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(MAX), the junction-to-ambient thermal resistance, θJA, and
the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using:
The value of θJA for the SOT-23 package is 220˚C/W and the micro SMD package is 320˚C/W. Exceeding the maximum allowable power dissipation will cause 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 LP2982 output must be diode-clamped to ground.
Note 5: The output PNP structure contains a diode between the VIN and VOUT terminals that is normally reverse-biased. Reversing the polarity from VIN to VOUT
will turn on this diode.
Note 6: 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: The ON/OFF inputs must be properly driven to prevent possible misoperation. For details, refer to Application Hints.
Note 9: See Typical Performance Characteristics curves.
Typical Performance Characteristics
Unless otherwise specified: TA = 25˚C, VIN = VO(NOM) + 1V,
COUT = 4.7 µF, CIN = 1 µF, all voltage options, ON/OFF pin tied to VIN.
Output Voltage vs
Temperature
Output Voltage vs
Temperature
DS012679-5
DS012679-4
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Unless otherwise specified: TA = 25˚C, VIN = VO(NOM) + 1V,
COUT = 4.7 µF, CIN = 1 µF, all voltage options, ON/OFF pin tied to VIN. (Continued)
Output Voltage vs
Temparature
Dropout Characteristics
DS012679-7
DS012679-6
Dropout Characteristics
Dropout Characteristics
DS012679-9
DS012679-8
Dropout Voltage vs
Temperature
Dropout Voltage vs
Load Current
DS012679-10
DS012679-11
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LP2982
Typical Performance Characteristics
LP2982
Typical Performance Characteristics
Unless otherwise specified: TA = 25˚C, VIN = VO(NOM) + 1V,
COUT = 4.7 µF, CIN = 1 µF, all voltage options, ON/OFF pin tied to VIN. (Continued)
Ground Pin Current vs
Temperature
Ground Pin Current vs
Load Current
DS012679-13
DS012679-12
Input Current vs VIN
Input Current vs VIN
DS012679-15
DS012679-14
Line Transient Response
Line Transient Response
DS012679-16
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DS012679-17
8
Unless otherwise specified: TA = 25˚C, VIN = VO(NOM) + 1V,
COUT = 4.7 µF, CIN = 1 µF, all voltage options, ON/OFF pin tied to VIN. (Continued)
Load Transient Response
Load Transient Response
DS012679-18
Load Transient Response
DS012679-19
Load Transient Response
DS012679-20
Short Circuit Current
DS012679-21
Instantaneous Short Circuit
Current vs Temperature
DS012679-22
DS012679-23
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LP2982
Typical Performance Characteristics
LP2982
Typical Performance Characteristics
Unless otherwise specified: TA = 25˚C, VIN = VO(NOM) + 1V,
COUT = 4.7 µF, CIN = 1 µF, all voltage options, ON/OFF pin tied to VIN. (Continued)
Short Circuit Current
Instantaneous Short Circuit
Current vs Output Voltage
DS012679-24
DS012679-25
Output Impedance vs
Frequency
Output Impedance vs
Frequency
DS012679-26
ON/OFF Pin Current vs
VON/OFF
DS012679-29
ON/OFF Threshold
vs Temperature
DS012679-35
DS012679-34
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Unless otherwise specified: TA = 25˚C, VIN = VO(NOM) + 1V,
COUT = 4.7 µF, CIN = 1 µF, all voltage options, ON/OFF pin tied to VIN. (Continued)
Input to Output Leakage
vs Temperature
Output Reverse Leakage vs
Temperature
DS012679-30
Output Noise Density
DS012679-31
Output Noise Density
DS012679-48
DS012679-42
Output Noise Density
Ripple Rejection
DS012679-49
DS012679-41
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LP2982
Typical Performance Characteristics
LP2982
Typical Performance Characteristics
Unless otherwise specified: TA = 25˚C, VIN = VO(NOM) + 1V,
COUT = 4.7 µF, CIN = 1 µF, all voltage options, ON/OFF pin tied to VIN. (Continued)
Turn-ON Waveform
Turn-ON Waveform
DS012679-50
DS012679-51
Turn-ON Waveform
DS012679-52
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EXTERNAL CAPACITORS
An aluminum electrolytic can exhibit an ESR increase of as
much as 50X when going from 20˚C to −40˚C. Also, some
aluminum electrolytic are not operational below −25˚C because the electrolyte can freeze.
Like any low-dropout regulator, the external capacitors used
with the LP2982 must be carefully selected to assure regulator loop stability.
INPUT CAPACITOR: An input capacitor whose value is ≥
1 µF is required with the LP2982 (amount of capacitance can
be increased without limit).
This capacitor must be located a distance of not more than
0.5" from the input pin of the LP2982 and returned to a clean
analog ground. Any good quality ceramic or tantalum can be
used for this capacitor.
OUTPUT CAPACITOR: The output capacitor must meet
both the requirement for minimum amount of capacitance
and E.S.R. (equivalent series resistance) value. Curves are
provided which show the allowable ESR range as a function
of load current for various output voltages and capacitor values (refer to Figure 1, Figure 2).
IMPORTANT: The output capacitor must maintain its ESR in
the stable region over the full operating temperature to assure stability. Also, capacitor tolerance and variation with
temperature must be considered to assure the minimum
amount of capacitance is provided at all times.
This capacitor should be located not more than 0.5" from the
output pin of the LP2982 and returned to a clean analog
ground.
LOW-CURRENT OPERATION: In applications where the
load current is < 1 mA, special consideration must be given
to the output capacitor.
Circuitry inside the LP2982 is specially designed to reduce
operating (quiescent) current at light loads down to about
65 µA.
The mode of operation which yields this very low quiescent
current also means that the output capacitor ESR is critical.
For optimum stability and minimum output noise, it is recommended that a 10Ω resistor be placed in series with the output capacitor in any applications where IL < 1 mA.
DS012679-43
CAPACITOR CHARACTERISTICS
TANTALUM: Tantalum capacitors are the best choice for
use with the LP2982. Most good quality tantalum can be
used with the LP2982, but check the manufacturer’s data
sheet to be sure the ESR is in range.
It is important to remember that ESR increases sharply at
lower temperatures ( < 10˚C) and a capacitor that is near the
upper limit for stability at room temperature can cause instability when it gets cold.
In applications which must operate at very low temperatures,
it may be necessary to parallel the output tantalum capacitor
with a ceramic capacitor to prevent the ESR from going up
too high (see next section for important information on ceramic capacitors).
CERAMIC: Ceramic capacitors are not recommended for
use at the output of the LP2982. This is because the ESR of
a ceramic can be low enough to go below the minimum
stable value for the LP2982. A good 2.2 µF ceramic was
measured and found to have an ESR of about 15 mΩ, which
is low enough to cause oscillations.
If a ceramic capacitor is used on the output, a 1Ω resistor
should be placed in series with the capacitor.
ALUMINUM: Because of large physical size, aluminum electrolytic are not typically used with the LP2982. They must
FIGURE 1.
5V/2.2 µF ESR Curves
FIGURE 2.
3V/4.7 µF ESR Curves
DS012679-44
BYPASS CAPACITOR
The 0.01 µF capacitor connected to the bypass pin to reduce
noise must have very low leakage.
The current flowing out of the bypass pin comes from the
bandgap reference, which is used to set the output voltage.
This capacitor leakage current causes the output voltage to
decline by an amount proportional to the current. Typical values are −0.015%/nA @ −40˚C, −0.021%/nA @ 25˚C, and
−0.035%/nA @ +125˚C.
This data is valid up to a maximum leakage current of about
500 nA, beyond which the bandgap is so severely loaded
that it can not function.
Care must be taken to ensure that the capacitor selected will
not have excessive leakage current over the operating temperature range of the application.
A high quality ceramic capacitor which uses either NPO or
COG type dielectric material will typically have very low leakage. Small surface mount polypropylene or polycarbonate
film capacitors also have extremely low leakage, but are
slightly larger than ceramics.
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LP2982
meet the same ESR requirements over the operating temperature range, which is more difficult because of their large
increase in ESR at cold temperature.
Application Hints
LP2982
Application Hints
ON/OFF INPUT OPERATION
(Continued)
The LP2982 is shut off by pulling the ON/OFF input low, and
turned on by driving the input high. If this feature is not to be
used, the ON/OFF input should be tied to VIN to keep the
regulator on at all times (the ON/OFF input must not be left
floating).
REVERSE CURRENT PATH
The power transistor used in the LP2982 has an inherent diode connected between the regulator input and output (see
below).
To ensure proper operation, the signal source used to drive
the ON/OFF input must be able to swing above and below
the specified turn-on/turn-off voltage thresholds which guarantee an ON or OFF state (see Electrical Characteristics).
The ON/OFF signal may come from either a totem-pole output, or an open-collector output with pull-up resistor to the
LP2982 input voltage or another logic supply. The high-level
voltage may exceed the LP2982 input voltage, but must remain within the Absolute Maximum Ratings for the ON/OFF
pin.
It is also important that the turn-on/turn-off voltage signals
applied to the ON/OFF input have a slew rate which is
greater than 40 mV/µs.
Important: the regulator shutdown function will operate incorrectly if a slow-moving signal is applied to the ON/OFF input.
DS012679-39
If the output is forced above the input by more than a VBE,
this diode will become forward biased and current will flow
from the VOUT terminal to VIN. This current must be limited to
< 100 mA to prevent damage to the part.
The internal diode can also be turned on by abruptly stepping the input voltage to a value below the output voltage.
To prevent regulator misoperation, a Schottky diode should
be used in any application where input/output voltage conditions can cause the internal diode to be turned on (see below).
Micro SMD Mounting
The micro SMD package requires specific mounting techniques which are detailed in National Semiconductor Application Note # 1112. Referring to the section Surface Mount
Technology (SMT) Assembly Considerations, it should be
noted that the pad style which must be used with the 5-pin
package is the NSMD (non-solder mask defined) type.
For best results during assembly, alignment ordinals on the
PC board may be used to facilitate placement of the micro
SMD device.
DS012679-40
Micro SMD Light Sensitivity
Exposing the micro SMD device to direct sunlight will cause
misoperation of the device. Light sources such as Halogen
lamps can also affect electrical performance if brought near
to the device.
The wavelenghts which have the most detrimental effect are
reds and infra-reds, which means that the fluorescent lighting used inside most buildings has very little effect on performance. A micro SMD test board was brought to within 1 cm
of a fluorescent desk lamp and the effect on the regulated
output voltage was negligible, showing a deviation of less
than 0.1% from nominal.
As shown, the Schottky diode is connected in parallel with
the internal parasitic diode and prevents it from being turned
on by limiting the voltage drop across it to about 0.3V.
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LP2982
Physical Dimensions
inches (millimeters) unless otherwise noted
5-Lead Small Outline Package (M5)
NS Package Number MF05A
For Order Numbers, refer to Table 1in the “Ordering Information” section of this document.
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LP2982
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
NOTES: UNLESS OTHERWISE SPECIFIED
1. EPOXY COATING
2. 63Sn/37Pb EUTECTIC BUMP
3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD.
4. PIN 1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. REMAINING PINS ARE
NUMBERED COUNTER CLOCKWISE.
5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH, X2 IS PACKAGE LENGTH AND X3 IS PACKAGE HEIGHT.
6.NO JEDEC REGISTRATION AS OF AUG.1999.
micro SMD, 5 Bump, Package (BPA05)
NS Package Number BPA05A
For Order Numbers, refer to Table 1“Ordering Information” section of this document.
The dimensions for X1, X2 and X3 are as given:
X1 = 0.930 +/− 0.030mm
X2 = 1.107 +/− 0.030mm
X3 = 0.850 +/− 0.050mm
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LP2982 Micropower 50 mA Ultra Low-Dropout Regulator
Notes
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
National Semiconductor
Corporation
Americas
Tel: 1-800-272-9959
Fax: 1-800-737-7018
Email: [email protected]
www.national.com
National Semiconductor
Europe
Fax: +49 (0) 180-530 85 86
Email: [email protected]
Deutsch Tel: +49 (0) 69 9508 6208
English Tel: +44 (0) 870 24 0 2171
Français Tel: +33 (0) 1 41 91 8790
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
National Semiconductor
Asia Pacific Customer
Response Group
Tel: 65-2544466
Fax: 65-2504466
Email: [email protected]
National Semiconductor
Japan Ltd.
Tel: 81-3-5639-7560
Fax: 81-3-5639-7507
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.