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LP3856ESX-ADJ/NOPB PDF预览

LP3856ESX-ADJ/NOPB

更新时间： 2024-11-16 01:12:43
品牌 Logo 应用领域
德州仪器 - TI 输出元件调节器
页数 文件大小 规格书
22页 2042K
描述
3A Fast Response Ultra Low Dropout Linear Regulators

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LP3856ESX-ADJ/NOPB 数据手册

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LP3856-ADJ  
www.ti.com  
SNVS243E –SEPTEMBER 2003–REVISED APRIL 2013  
LP3856-ADJ 3A Fast Response Ultra Low Dropout Linear Regulators  
Check for Samples: LP3856-ADJ  
1
FEATURES  
DESCRIPTION  
The LP3856-ADJ fast ultra low-dropout linear  
regulators operate from a +2.5V to +7.0V input  
supply. These ultra low dropout linear regulators  
respond very quickly to step changes in load, which  
makes them suitable for low voltage microprocessor  
applications. The LP3856-ADJ is developed on a  
CMOS process which allows low quiescent current  
operation independent of output load current. This  
CMOS process also allows the LP3856-ADJ to  
operate under extremely low dropout conditions.  
2
•
•
•
•
•
•
•
Ultra Low Dropout Voltage  
Stable with Selected Ceramic Capacitors  
Low Ground Pin Current  
Load Regulation of 0.08%  
10nA Quiescent Current in Shutdown Mode  
Specified Output Current of 3A DC  
Available in DDPAK/TO-263 and TO-220  
Packages  
•
•
Overtemperature/Overcurrent Protection  
Dropout Voltage: Ultra low dropout voltage; typically  
39mV at 300mA load current and 390mV at 3A load  
current.  
−40°C to +125°C Junction Temperature Range  
APPLICATIONS  
Ground Pin Current: Typically 4mA at 3A load  
current.  
•
•
•
•
•
•
•
•
Microprocessor Power Supplies  
GTL, GTL+, BTL, and SSTL Bus Terminators  
Power Supplies for DSPs  
SCSI Terminator  
Shutdown Mode: Typically 10nA quiescent current  
when the shutdown pin is pulled low.  
Adjustable Output Voltage: The output voltage may  
be programmed via two external resistors.  
Post Regulators  
High Efficiency Linear Regulators  
Battery Chargers  
Other Battery Powered Applications  
TYPICAL APPLICATION CIRCUIT  
OUTPUT  
3A  
VIN  
VOUT  
INPUT  
CFF**  
R1**  
LP3856-ADJ  
SD **  
ADJ  
SD  
GND  
*COUT  
10 mF  
*CIN  
10 mF  
R2**  
* TANTALUM OR  
CERAMIC  
R1  
R2  
)
VOUT = 1.216 x (1+  
**See Application Hints  
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 © 2003–2013, Texas Instruments Incorporated  
1234567...22

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LP3856ESX-ADJ/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LP3856ES-ADJ/NOPB TI

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