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LM5008ASD PDF预览

LM5008ASD

更新时间: 2024-09-28 05:42:23
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器开关
页数 文件大小 规格书
16页 388K
描述
100V, 350 mA Constant On-Time Buck Switching Regulator

LM5008ASD 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:SON, SOLCC8,.15,32Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.15模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODEJESD-30 代码:S-PDSO-N8
湿度敏感等级:1端子数量:8
封装主体材料:PLASTIC/EPOXY封装代码:SON
封装等效代码:SOLCC8,.15,32封装形状:SQUARE
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):225
认证状态:Not Qualified子类别:Switching Regulator or Controllers
表面贴装:YES端子形式:NO LEAD
端子节距:0.8 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIEDBase Number Matches:1

LM5008ASD 数据手册

 浏览型号LM5008ASD的Datasheet PDF文件第2页浏览型号LM5008ASD的Datasheet PDF文件第3页浏览型号LM5008ASD的Datasheet PDF文件第4页浏览型号LM5008ASD的Datasheet PDF文件第5页浏览型号LM5008ASD的Datasheet PDF文件第6页浏览型号LM5008ASD的Datasheet PDF文件第7页 
June 26, 2009  
LM5008A  
100V, 350 mA Constant On-Time Buck Switching Regulator  
General Description  
Features  
The LM5008A is a functional variant of the LM5008 COT Buck  
Switching Regulator. The functional differences of the  
LM5008A are: The minimum input operating voltage is 6 volts,  
the on-time equation is slightly different, and the requirement  
for a minimum load current is removed.  
Operating input voltage range: 6V to 95V  
Integrated 100V, N-Channel buck switch  
Internal start-up regulator  
No loop compensation required  
Ultra-Fast transient response  
The LM5008A Step Down Switching Regulator features all of  
the functions needed to implement a low cost, efficient, Buck  
bias regulator. This high voltage regulator contains an 100 V  
N-Channel Buck Switch. The device is easy to implement and  
is provided in the MSOP-8 and the thermally enhanced LLP-8  
packages. The regulator is based on a control scheme using  
an ON time inversely proportional to VIN. This feature allows  
the operating frequency to remain relatively constant. The  
control scheme requires no loop compensation. An intelligent  
current limit is implemented with forced OFF time, which is  
inversely proportional to Vout. This scheme ensures short  
circuit control while providing minimum foldback. Other fea-  
tures include: Thermal Shutdown, VCC under-voltage lockout,  
Gate drive under-voltage lockout, Max Duty Cycle limiter, and  
a pre-charge switch.  
On time varies inversely with input voltage  
Operating frequency remains constant with varying line  
voltage and load current  
Adjustable output voltage from 2.5V  
Highly efficient operation  
Precision internal reference  
Low bias current  
Intelligent current limit  
Thermal shutdown  
Typical Applications  
Non-Isolated Telecommunication Buck Regulator  
Secondary High Voltage Post Regulator  
+42V Automotive Systems  
Package  
MSOP - 8  
LLP - 8 (4mm x 4mm)  
Typical Application, Basic Step-Down Regulator  
30074901  
© 2009 National Semiconductor Corporation  
300749  
www.national.com  

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