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LP2981A-29 PDF预览

LP2981A-29

更新时间： 2024-11-15 05:00:07
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
14页 248K
描述
100-mA ULTRA-LOW DROPOUT REGULATOR WITH SHUTDOWN

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LP2981A-29 数据手册

 浏览型号LP2981A-29的Datasheet PDF文件第2页浏览型号LP2981A-29的Datasheet PDF文件第3页浏览型号LP2981A-29的Datasheet PDF文件第4页浏览型号LP2981A-29的Datasheet PDF文件第5页浏览型号LP2981A-29的Datasheet PDF文件第6页浏览型号LP2981A-29的Datasheet PDF文件第7页 
LP2981-29, LP2981-50, LP2981A-29, LP2981A-50  
100-mA ULTRA-LOW DROPOUT REGULATOR  
WITH SHUTDOWN  
www.ti.com  
SLVS768–MARCH 2007  
FEATURES  
PORTABLE APPLICATIONS  
•
•
•
•
•
Mobile Phones  
Laptops  
Personal Digital Assistants (PDAs)  
Digital Cameras and Camcorders  
CD and MP3 Players  
•
Output Tolerance of  
–
–
0.75% (A Grade)  
1.25% (Standard Grade)  
•
Ultra-Low Dropout, Typically  
–
–
200 mV at Full Load of 100 mA  
7 mV at 1 mA  
DBV (SOT-23) PACKAGE  
(TOP VIEW)  
•
•
•
•
•
•
Wide VIN Range…16 V Max  
Low IQ…600 µA Typ at Full Load of 100 mA  
Shutdown Current…0.01 µA Typ  
Fast Transient Response to Line and Load  
Overcurrent and Thermal Protection  
High Peak Current Capability  
V
GND  
V
OUT  
1
2
3
5
4
IN  
ON/OFF  
NC  
NC − No connect; must be left open  
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 fixed voltages of 2.9 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 overcurrent and overtemperature protection, are  
included.  
The LP2981 has features that make the regulator an ideal candidate for a variety of portable applications:  
•
•
•
•
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 µA when the  
ON/OFF pin is pulled low.  
Small packaging: For the most space-constrained needs, the regulator is available in the SOT-23 package.  
ORDERING INFORMATION(1)  
VOUT  
(NOM)  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
TJ  
PART GRADE  
PACKAGE(2)  
MARKING(3)  
Reel of 3000  
LP2981A-29DBVR  
LP2981A-29DBVT  
LP2981A-50DBVR  
LP2981A-50DBVT  
LP2981-29DBVR  
LP2981-29DBVT  
LP2981-50DBVR  
LP2981-50DBVT  
2.9 V  
5 V  
SOT-23-5 – DBV  
SOT-23-5 – DBV  
SOT-23-5 – DBV  
SOT-23-5 – DBV  
LRB_  
Reel of 250  
Reel of 3000  
Reel of 250  
Reel of 3000  
Reel of 250  
Reel of 3000  
Reel of 250  
A grade:  
0.75% tolerance  
LPE_  
LP3_  
LPD_  
–40°C to 125°C  
2.9 V  
5 V  
Standard grade:  
1.25% tolerance  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at  
www.ti.com/sc/package.  
(3) The actual top-side marking has one additional character that designates the assembly/test site.  
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2007, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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