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LP38511-ADJ PDF预览

LP38511-ADJ

更新时间： 2024-11-14 12:04:43
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
21页 1218K
描述
LP38511-ADJ 800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator

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LP38511-ADJ 数据手册

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LP38511-ADJ  
www.ti.com  
SNVS545D –JANUARY 2009–REVISED APRIL 2013  
LP38511-ADJ 800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage  
Regulator  
Check for Samples: LP38511-ADJ  
1
FEATURES  
APPLICATIONS  
2
•
2.25V to 5.5V Input Voltage Range  
•
•
•
•
•
•
Digital Core ASICs, FPGAs, and DSPs  
Servers  
•
Adjustable Output Voltage Range of 0.5V to  
3.3V  
Routers and Switches  
Base Stations  
•
•
800mA Output Load Current  
±2.0% Accuracy over Line, Load, and Full-  
Temperature Range from -40°C to +125°C  
Storage Area Networks  
DDR2 Memory  
•
•
•
Stable with Tiny 10 uF Ceramic Capacitors  
Enable Pin  
DESCRIPTION  
The LP38511-ADJ Fast-Transient Response Low-  
Dropout Voltage Regulator offers the highest-  
performance in meeting AC and DC accuracy  
requirements for powering Digital Cores. The  
LP38511-ADJ uses a proprietary control loop that  
enables extremely fast response to change in line  
conditions and load demands. Output Voltage DC  
accuracy is specified at 2.5% over line, load and full  
temperature range from -40°C to +125°C. The  
LP38511-ADJ is designed for inputs from the 2.5V,  
3.3V, and 5.0V rail, is stable with 10 uF ceramic  
capacitors, and has an adjustable output voltage. The  
Typically Less than 1uA of Ground Pin Current  
with Enable Pin Low  
•
•
25dB of PSRR at 100 kHz  
Over-Temperature and Over-Current  
Protection  
•
8-Pin SO PowerPad and 5-Pin PFM Surface  
Mount Packages  
LP38511-ADJ  
provides  
excellent  
transient  
performance to meet the demand of high  
performance digital core ASICs, DSPs, and FPGAs  
found in highly-intensive applications such as servers,  
routers/switches, and base stations.  
Typical Application Circuit  
IN  
V
OUT  
ADJ  
V
OUT  
IN  
C
10 mF  
Ceramic  
IN  
R1  
R2  
LP38511-ADJ  
ON  
OFF  
C
FF  
C
OUT  
10 mF  
Ceramic  
V
EN  
EN  
GND  
GND  
GND  
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 © 2009–2013, Texas Instruments Incorporated  
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