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LP38512TJX-1.8 PDF预览

LP38512TJX-1.8

更新时间： 2024-11-14 03:27:31
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
14页 338K
描述
1.5A Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag

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LP38512TJX-1.8 数据手册

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May 14, 2008  
LP38512-1.8  
1.5A Fast-Transient Response Low-Dropout Linear  
Voltage Regulator with Error Flag  
General Description  
Features  
The LP38512-1.8 Fast-Transient Response Low-Dropout  
Voltage Regulator offers the highest-performance in meeting  
AC and DC accuracy requirements for powering Digital  
Cores. The LP38512-1.8 uses a proprietary control loop that  
enables extremely fast response to change in line conditions  
and load demands. Output Voltage DC accuracy is guaran-  
teed at 2.5% over line, load and full temperature range from  
-40°C to +125°C. The LP38512-1.8 is designed for inputs  
from the 2.5V, 3.3V, and 5.0V rail, is stable with 10 μF ceramic  
capacitors, and has a fixed 1.8V output. An Error Flag feature  
monitors the output voltage and notifies the system processor  
when the output voltage falls more than 15% below the nom-  
inal value. The LP38512-1.8 provides excellent transient per-  
formance to meet the demand of high performance digital  
core ASICs, DSPs, and FPGAs found in highly-intensive ap-  
plications such as servers, routers/switches, and base sta-  
tions.  
2.25V to 5.5V Input Voltage Range  
■
■
■
1.8V Fixed Output Voltage  
1.5A Output Load Current  
±2.5% Accuracy over Line, Load, and Full-Temperature  
Range from -40°C to +125°C  
■
Stable with tiny 10 µF ceramic capacitors  
■
■
0.20% Output Voltage Load Regulation from 10 mA to  
1.5A  
Enable pin  
■
■
■
■
■
■
Error Flag Indicates Status of Output Voltage  
1uA of Quiescent current in Shutdown  
40dB of PSRR at 100 kHz  
Over-Temperature and Over-Current Protection  
TO-263 and TO-263 THIN Surface Mount Packages  
Applications  
Digital Core ASICs, FPGAs, and DSPs  
■
■
■
■
■
■
Servers  
Routers and Switches  
Base Stations  
Storage Area Networks  
DDR2 Memory  
Typical Application Circuit  
20183001  
© 2008 National Semiconductor Corporation  
201830  
www.national.com  
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