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LP2985A-18DBVRG4 PDF预览

LP2985A-18DBVRG4

更新时间： 2024-11-14 11:51:55
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
27页 649K
描述
150-mA LOW-NOISE LOW-DROPOUT REGULATOR WITH SHUTDOWN

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LP2985A-18DBVRG4 数据手册

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LP2985  
www.ti.com .......................................................................................................................................................... SLVS522M–JULY 2004–REVISED MARCH 2009  
150-mA LOW-NOISE LOW-DROPOUT REGULATOR WITH SHUTDOWN  
1
FEATURES  
PORTABLE APPLICATIONS  
•
•
•
•
•
•
Cellular Phones  
•
Output Tolerance of  
Palmtop and Laptop Computers  
Personal Digital Assistants (PDAs)  
Digital Cameras and Camcorders  
CD Players  
–
–
1% (A Grade)  
1.5% (Standard Grade)  
•
Ultra-Low Dropout, Typically  
–
–
280 mV at Full Load of 150 mA  
7 mV at 1 mA  
MP3 Players  
•
•
•
•
Wide VIN Range: 16 V Max  
DBV (SOT-23) PACKAGE  
(TOP VIEW)  
Low IQ: 850 µA at Full Load at 150 mA  
Shutdown Current: 0.01 µA Typ  
1
2
3
5
4
V
GND  
V
OUT  
IN  
Low Noise: 30 µVRMS With 10-nF Bypass  
Capacitor  
ON/OFF  
BYPASS  
•
Stable With Low-ESR Capacitors, Including  
Ceramic  
•
•
•
Overcurrent and Thermal Protection  
High Peak-Current Capability  
ESD Protection Exceeds JESD 22  
–
–
2000-V Human-Body Model (A114-A)  
200-V Machine Model (A115-A)  
DESCRIPTION/ORDERING INFORMATION  
The LP2985 family of fixed-output, low-dropout regulators offers exceptional, cost-effective performance for both  
portable and nonportable applications. Available in voltages of 1.8 V, 2.5 V, 2.8 V, 2.9 V, 3 V, 3.1 V, 3.3 V, 5 V,  
and 10 V, the family has an output tolerance of 1% for the A version (1.5% for the non-A version) and is capable  
of delivering 150-mA continuous load current. Standard regulator features, such as overcurrent and  
overtemperature protection, are included.  
The LP2985 has a host of features that makes the regulator an ideal candidate for a variety of portable  
applications:  
•
•
•
•
•
•
Low dropout: A PNP pass element allows a typical dropout of 280 mV at 150-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.  
Low-ESR-capacitor friendly: The regulator is stable with low-ESR capacitors, allowing the use of small,  
inexpensive, ceramic capacitors in cost-sensitive applications.  
Low noise: A BYPASS pin allows for low-noise operation, with a typical output noise of 30 µVRMS, with the  
use of a 10-nF bypass capacitor.  
Small packaging: For the most space-constrained needs, the regulator is available in the SOT-23 package.  
1
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.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2009, Texas Instruments Incorporated  
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LP2985A-18DBVRG4 替代型号

型号 品牌 替代类型 描述 数据表
LP2985A-18DBVJ TI

类似代替

 150-mA Low-noise Low-dropout Regulator With Shutdown
LP2985A-18DBVT TI

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LP2985A-18DBVR TI

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 150-mA LOW-NOISE LOW-DROPOUT REGULATOR WITH SHUTDOWN

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