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LP3984IMF-1.8 PDF预览

LP3984IMF-1.8

更新时间： 2024-09-29 02:58:15
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
21页 1133K
描述
Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature

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LP3984IMF-1.8 数据手册

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LP3984  
www.ti.com  
SNVS160F –OCTOBER 2001–REVISED OCTOBER 2013  
LP3984 Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature  
4-I/O DSBGA Package  
Check for Samples: LP3984  
1
FEATURES  
DESCRIPTION  
The LP3984 is designed for portable and wireless  
applications with demanding performance and space  
requirements.  
2
•
Miniature 4-I/O DSBGA or SOT-23-5 Package  
Logic controlled enable  
•
•
•
•
•
Stable with Tantalum Capacitors  
1 µF Tantalum Output Capacitor  
Fast Turn-On  
The LP3984's performance is optimized for battery  
powered systems to deliver extremely low dropout  
voltage and low quiescent current. Regulator ground  
current increases only slightly in dropout, further  
prolonging the battery life.  
Thermal Shutdown and Short-Circuit Current  
Limit  
Power supply rejection is better than 60 dB at low  
frequencies and starts to roll off at 10 kHz. High  
power supply rejection is maintained down to low  
input voltage levels common to battery operated  
circuits.  
KEY SPECIFICATIONS  
•
•
•
•
•
•
•
2.5 to 6.0V Input Range  
150 mA Output  
60 dB PSRR at 1 kHz, 40 dB at 10 kHz @ 3.1VIN  
≤ 1.2 µA Quiescent Current when Shut Down  
Fast Turn-On Time: 20 µs (typ.)  
75 mV typ Dropout with 150 mA Load  
The device is ideal for mobile phone and similar  
battery powered wireless applications. It provides up  
to 150 mA from a 2.5V to 6V input. The LP3984  
consumes less than 1.2 µA in disable mode and has  
fast turn-on time less than 20 µs.  
−40 to +125°C Junction Temperature Range for  
The LP3984 is available in a 4-bump DSBGA and 5-  
pin SOT-23 packages. Performance is specified for  
−40°C to +125°C temperature range and is available  
in 1.5V, 1.8V, 2.9V and 3.1V output voltages. For  
other output voltage options from 1.5V to 3.5V,  
please contact TI sales office.  
Operation  
•
1.5V, 1.8V, 2.9V and 3.1V  
APPLICATIONS  
•
•
•
•
CDMA Cellular Handsets  
Wideband CDMA Cellular Handsets  
GSM Cellular Handsets  
Portable Information Appliances  
Typical Application Circuit  
1(B2)  
3(A2)  
5(B1)  
VIN  
VOUT  
LP3984  
Tant  
1PF  
1PF  
4
VEN  
NC  
2(A1)  
Note: Pin Numbers in parenthesis indicate DSBGA 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.  
All trademarks are the property of their respective owners.  
2
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 © 2001–2013, Texas Instruments Incorporated  
 
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LP3984IMF-1.8 替代型号

型号 品牌 替代类型 描述 数据表
LP3984IMFX-1.8 TI

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 Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro DSB
LP3984IMFX-1.8/NOPB TI

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 Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro DSB
LP3984IMF-1.8/NOPB TI

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 Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro DSB

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