LP2982_15 Datasheet, PDF (1/21 Pages) Texas Instruments – LP2982 Micropower 50 mA Ultra Low-Dropout Regulator in SOT-23 Package

LP2982
www.ti.com
SNVS128J – MARCH 2000 – REVISED APRIL 2013
LP2982 Micropower 50 mA Ultra Low-Dropout Regulator in SOT-23 Package
Check for Samples: LP2982
FEATURES
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•23 Ultra Low Dropout Voltage
• Ensured 50 mA Output Current
• Typical Dropout Voltage 180 mV @ 80 mA
• 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 Z_OUT 0.3Ω Typical (10 Hz to 1 MHz)
• Over-Temperature/Over-Current Protection
• −40°C to +125°C Junction Temperature Range
APPLICATIONS
• Cellular Phone
• Palmtop/Laptop Computer
• Personal Digital Assistant (PDA)
• Camcorder, Personal Stereo, Camera
DESCRIPTION
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.
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).
Four output voltage versions, from 3.0V to 5.0V, are
available as standard products.
Block Diagram
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
VIP is a trademark of Texas Instruments.
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All other trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2000–2013, Texas Instruments Incorporated