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LM34910CSD PDF预览

LM34910CSD

更新时间: 2024-09-21 04:44:27
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
12页 270K
描述
High Voltage (50V, 1.25A) Step Down Switching Regulator

LM34910CSD 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:4 X 4 MM, PLASTIC, LLP-10Reach Compliance Code:unknown
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:CURRENT-MODE最大输入电压:50 V
最小输入电压:8 V标称输入电压:24 V
JESD-30 代码:S-XDSO-N10JESD-609代码:e3
长度:4 mm湿度敏感等级:1
功能数量:1端子数量:10
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:1.5 A封装主体材料:UNSPECIFIED
封装代码:HVSON封装等效代码:SOLCC10,.16,32
封装形状:SQUARE封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:0.8 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
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 SPECIFIED
宽度:4 mmBase Number Matches:1

LM34910CSD 数据手册

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August 2007  
LM34910C  
High Voltage (50V, 1.25A) Step Down Switching Regulator  
Operating frequency remains constant with load current  
and input voltage  
Maximum Duty Cycle Limited During Start-Up  
General Description  
The LM34910C Step Down Switching Regulator features all  
of the functions needed to implement a low cost, efficient,  
buck bias regulator capable of supplying 1.25A to the load.  
Adjustable output voltage  
Valley Current Limit At 1.25A  
This buck regulator contains a 55V N-Channel Buck Switch,  
and is available in the thermally enhanced LLP-10 package.  
The hysteretic regulation scheme requires no loop compen-  
sation, results in fast load transient response, and simplifies  
circuit implementation. The operating frequency remains con-  
stant with line and load variations due to the inverse relation-  
ship between the input voltage and the on-time. The current  
limit detection is set at 1.25A. Additional features include:  
VCC under-voltage lockout, thermal shutdown, gate drive un-  
der-voltage lockout, and maximum duty cycle limiter.  
Precision internal reference  
Low bias current  
Highly efficient operation  
Thermal shutdown  
Typical Applications  
High Efficiency Point-Of-Load (POL) Regulator  
Non-Isolated Telecommunication Buck Regulator  
Secondary High Voltage Post Regulator  
Features  
Integrated 55V, N-Channel buck switch  
Package  
Integrated start-up regulator  
LLP-10 (4 mm x 4 mm)  
Input Voltage Range: 8V to 50V  
Exposed Thermal Pad For Improved Heat Dissipation  
No loop compensation required  
Ultra-Fast transient response  
Connection Diagram  
30023502  
10-Lead LLP  
Ordering Information  
Order Number  
LM34910CSD  
LM34910CSDX  
LM34910CSDE  
Package Type  
NSC Package Drawing  
SDC10A  
Supplied As  
LLP-10 (4x4)  
LLP-10 (4x4)  
LLP-10 (4x4)  
1000 Units on Tape and Reel  
4500 Units on Tape and Reel  
250 Units on Tape and Reel  
SDC10A  
SDC10A  
© 2007 National Semiconductor Corporation  
300235  
www.national.com  

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