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LP2992AILDX-5.0 Datasheet(PDF) 1 Page - Texas Instruments

Part # LP2992AILDX-5.0
Description  Micropower 250-mA Low-Noise Ultralow-Dropout Regulator in SOT-23
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP2992AILDX-5.0 Datasheet(HTML) 1 Page - Texas Instruments

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ON/OFF
IN
OUT
GND
VIN
VON/OFF
VOUT
LP2992
COUT
4.7 µF
CIN
1 µF
OFF
ON
CBYPASS
4.7 µF
BYPASS
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Design
LP2992
SNVS171I – NOVEMBER 2001 – REVISED NOVEMBER 2015
LP2992 Micropower 250-mA Low-Noise Ultralow-Dropout Regulator in SOT-23 and WSON
Packages Designed for Use With Very Low-ESR Output Capacitors
1 Features
3 Description
The LP2992 is a 250-mA, fixed-output voltage
1
Input Voltage Range: 2.2 V to 16 V
regulator designed to provide ultralow-dropout and
Output Voltage Range: 1.5 V to 5 V
low noise in battery-powered applications.
Wide Supply Voltage Range (16-V Maximum)
Using an optimized Vertically Integrated PNP (VIP)
Ultralow-Dropout Voltage
process, the LP2992 delivers unequaled performance
Specified 250-mA Output Current
in
all
specifications
critical
to
battery-powered
designs:
Smallest Possible Size (SOT-23, WSON
Dropout voltage: Typically 450 mV at 250-mA
Package)
load, and 5 mV at 1-mA load.
Requires Minimum External Components
Ground pin current: Typically 1500 µA at 250-mA
Stable With Low-ESR Output Capacitor
load, and 75 µA at 1-mA load.
< 1-µA Quiescent Current When Shut Down
Enhanced stability: The LP2992 is stable with
Low Ground Pin Current at All Loads
output
capacitor
equivalent
series
resistance
(ESR) as low as 5 m
Ω which allows the use of
Output Voltage Accuracy 1% (A Grade)
ceramic capacitors on the output.
High Peak Current Capability
Sleep mode: Less than 1-µA quiescent current
Low ZOUT: 0.3-Ω Typical (10 Hz to 1 MHz)
when ON/OFF pin is pulled low.
Overtemperature and Overcurrent Protection
Smallest
possible
size:
SOT-23
and
WSON
−40°C to +125°C Junction Temperature Range
packages use absolute minimum board space.
Custom Voltages Available
Precision output: 1% tolerance output voltages
available (A grade).
2 Applications
Low noise: By adding a 10-nF bypass capacitor,
output noise can be reduced to 30 µV (typical).
Cellular Phones
Multiple voltage options, from 1.5 V to 5 V, are
Palmtop/Laptop Computers
available as standard products. Consult factory for
Personal Digital Assistants (PDA)
custom voltages.
Camcorders, Personal Stereos, Cameras
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
WSON (6)
3.29 mm × 2.92 mm
LP2992
SOT-23 (5)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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