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LP38503-ADJ PDF预览

LP38503-ADJ

更新时间： 2024-11-15 11:06:35
品牌 Logo 应用领域
德州仪器 - TI 电源电路线性稳压器IC
页数 文件大小 规格书
22页 1314K
描述
3A、可调节超低压降稳压器

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LP38503-ADJ 数据手册

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LP38501-ADJ, LP38503-ADJ  
www.ti.com  
SNVS522H –AUGUST 2007–REVISED APRIL 2013  
LP38501/3-ADJ, LP38501A/3A-ADJ 3A FlexCap Low Dropout Linear Regulator for 2.7V to  
5.5V Inputs  
Check for Samples: LP38501-ADJ, LP38503-ADJ  
1
FEATURES  
DESCRIPTION  
2
•
FlexCap: Stable with Ceramic, Tantalum, or  
Aluminum Capacitors  
TI's FlexCap LDO's feature unique compensation that  
allows the use of any type of output capacitor with no  
limits on minimum or maximum ESR. The LP38501/3  
series of low-dropout linear regulators operates from  
a +2.7V to +5.5V 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. Developed on a  
CMOS process, (utilizing a PMOS pass transistor),  
the LP38501/3 has low quiescent current that  
changes little with load current.  
•
•
•
•
•
•
•
•
•
Stable with 10 µF Input/Output Capacitor  
Adjustable Output Voltage from 0.6V to 5V  
Low Ground Pin Current  
25 nA Quiescent Current in Shutdown Mode  
Output Current of 3A  
Available in TO-263, PFM THIN Packages  
VADJ Accuracy of ±1.5% at 25°C (A Grade)  
VADJ Accuracy of ±3.5% at 25°C (STD)  
Ground Pin Current: Typically 2 mA at 3A load  
current.  
Over-Temperature and Over-Current  
Protection  
Disable Mode: Typically 25 nA quiescent current  
when the Enable pin is pulled low.  
•
•
−40°C to +125°C Operating TJ Range  
Enable Pin (LP38501)  
Simplified Compensation: Stable with any type of  
output capacitor, regardless of ESR.  
APPLICATIONS  
Precision Output: "A" grade versions available with  
1.5% VADJ tolerance (25°C) and 3% over line, load  
and temperature.  
•
ASIC Power Supplies In:  
–
–
Printers, Graphics Cards, DVD Players  
Set Top Boxes, Copiers, Routers  
•
•
•
DSP and FPGA Power Supplies  
SMPS Regulator  
Conversion from 3.3V or 5V Rail  
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.  
2
All trademarks are the property of their respective owners.  
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 © 2007–2013, Texas Instruments Incorporated  
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LP38503-ADJ 替代型号

型号 品牌 替代类型 描述 数据表
LP38693-ADJ-Q1 TI

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 		LP38501/3-ADJ, LP38501A/3A-ADJ 3A FlexCap Low Dropout Linear Regulator for 2.7V to 5.5V In
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