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LP2981YEUR Datasheet

  • LP2981YEUR

  • 100-MA ULTRA DROPOUT REGULATOR WITH SHUTDOWN

  • 344.70KB

  • 20頁(yè)

  • TI

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LP2981
100 mA ULTRA LOW DROPOUT REGULATOR
WITH SHUTDOWN
SLVS521B 鈭?JULY 2004 鈭?REVISED OCTOBER 2004
D
Available in the Texas Instruments
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NanoStar錚?Chip Scale Package
Fixed/ADJ Versions
Output Tolerance of:
鈭?0.75% (A Grade)
鈭?1.25% (Standard Grade)
Ultra-Low Dropout, Typically
鈭?200 mV at Full Load of 100 mA
鈭?7 mV at 1 mA
Wide V
IN
Range . . . 16 V Max
Low I
Q
. . . 600
碌A(chǔ)
Typ at Full Load of
100 mA
Shutdown Current . . . 0.01
碌A(chǔ)
Typ
Fast Transient Response to Line and Load
Overcurrent and Thermal Protection
High Peak Current Capability
Portable Applications
鈭?Mobile Phones
鈭?Laptops
鈭?Personal Digital Assistants (PDAs)
鈭?Digital Cameras and Camcorders
鈭?CD and MP3 Players
DBV (SOT-23) PACKAGE
(TOP VIEW)
V
IN
GND
ON/OFF
1
2
3
5
4
V
OUT
ADJ/NC
鈥?/div>
YEQ, YEU, YZQ, OR YZU (WCSP) PACKAGE
(TOP VIEW)
GND
ADJ/NC
鈥?/div>
V
OUT
1 5
2
3 4
ON/OFF
V
IN
鈥?Must be left open in fixed-output versions
description/ordering information
The LP2981 family of fixed-output, low-dropout regulators offers exceptional, cost-effective performance for
both portable and nonportable applications. Available in adjustable version and in fixed voltages of 1.8 V,
2.5 V, 2.7 V, 2.8 V, 2.9 V, 3 V, 3.2 V, 3.3 V, 3.6 V, and 5 V, the family has an output tolerance of 0.75% for the
A-grade devices (1.25% for the standard grade) and is capable of delivering 100-mA continuous load current.
Standard regulator features, such as over-current and over-temperature protection, are included.
The LP2981 has features that make the regulator an ideal candidate for a variety of portable applications:
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Low dropout: A PNP pass element allows a typical dropout of 200 mV at 100-mA load current and 7 mV
at 1-mA load.
Low quiescent current: The use of a vertical PNP process allows for quiescent currents that are
considerably lower than those associated with traditional lateral PNP regulators.
Shutdown: A shutdown feature is available, allowing the regulator to consume only 0.01
碌A(chǔ)
when the
ON/OFF pin is pulled low.
Small packaging: For the most space-constraint needs, the regulator is available in SOT-23 package
and NanoStar錚?chip scale packaging. NanoStar package technology is a major breakthrough in IC
packaging concepts, using the die as the package.
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.
NanoStar is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
錚?/div>
2004, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

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