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LM25011MY PDF预览

LM25011MY

更新时间: 2024-09-17 05:42:07
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光电二极管
页数 文件大小 规格书
16页 403K
描述
42V, 2A Constant On-Time Switching Regulator with Adjustable Current Limit

LM25011MY 技术参数

是否Rohs认证:不符合生命周期:Transferred
包装说明:HTSSOP, TSSOP10,.19,20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.16Is Samacsys:N
其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 2.51V模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE最大输入电压:42 V
最小输入电压:6 V标称输入电压:12 V
JESD-30 代码:S-PDSO-G10长度:3 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封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP封装等效代码:TSSOP10,.19,20
封装形状:SQUARE封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):225认证状态:Not Qualified
座面最大高度:1.09 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:2000 kHz温度等级:AUTOMOTIVE
端子形式:GULL WING端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3 mmBase Number Matches:1

LM25011MY 数据手册

 浏览型号LM25011MY的Datasheet PDF文件第2页浏览型号LM25011MY的Datasheet PDF文件第3页浏览型号LM25011MY的Datasheet PDF文件第4页浏览型号LM25011MY的Datasheet PDF文件第5页浏览型号LM25011MY的Datasheet PDF文件第6页浏览型号LM25011MY的Datasheet PDF文件第7页 
June 1, 2009  
LM25011  
42V, 2A Constant On-Time Switching Regulator with  
Adjustable Current Limit  
General Description  
Features  
The LM25011 Constant On-time Step-Down Switching Reg-  
ulator features all the functions needed to implement a low  
cost, efficient, buck bias regulator capable of supplying up to  
2A of load current. This high voltage regulator contains an N-  
Channel Buck switch, a startup regulator, current limit detec-  
tion, and internal ripple control. The constant on-time  
regulation principle requires no loop compensation, results in  
fast load transient response, and simplifies circuit implemen-  
tation. The operating frequency remains constant with line  
and load. The adjustable valley current limit detection results  
in a smooth transition from constant voltage to constant cur-  
rent mode when current limit is reached, without the use of  
current limit foldback. The PGD output indicates the output  
voltage has increased to within 5% of the expected regulation  
value. Additional features include: Low output ripple, VIN un-  
der-voltage lock-out, adjustable soft-start timing, thermal  
shutdown, gate drive pre-charge, gate drive under-voltage  
lock-out, and maximum duty cycle limit.  
Input operating voltage range: 6V to 42V  
Absolute maximum input rating: 45V  
Integrated 2A N-Channel Buck Switch  
Adjustable current limit  
Adjustable output voltage from 2.51V  
Minimum ripple voltage at VOUT  
Power Good output  
Switching frequency adjustable to 2 MHz  
Switching frequency remains nearly constant with load  
current and input voltage variations  
Ultra-fast transient response  
No loop compensation required  
Stable operation with ceramic output capacitors  
Adjustable Soft-Start timing  
Thermal shutdown  
Precision 2% feedback reference  
Package  
MSOP-10EP  
Typical Application, Basic Step-Down Regulator  
30094601  
© 2009 National Semiconductor Corporation  
300946  
www.national.com  

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