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LM3485Q1MMX PDF预览

LM3485Q1MMX

更新时间: 2024-11-26 21:16:55
品牌 Logo 应用领域
美国国家半导体 - NSC 开关光电二极管
页数 文件大小 规格书
16页 375K
描述
IC SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8, Switching Regulator or Controller

LM3485Q1MMX 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:TSSOP, TSSOP8,.19Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.2其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 1.239 V TO 35 V; ALSO OPERATES IN PWM CONTROL TECHNIQUE
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:CURRENT-MODE
控制技术:HYSTERETIC CURRENT MODE最大输入电压:35 V
最小输入电压:4.5 V标称输入电压:12 V
JESD-30 代码:S-PDSO-G8长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:0.1 A
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP8,.19封装形状:SQUARE
封装形式:SMALL OUTLINE, 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:SINGLE最大切换频率:1000 kHz
温度等级:AUTOMOTIVE端子形式:GULL WING
端子节距:0.65 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 mm
Base Number Matches:1

LM3485Q1MMX 数据手册

 浏览型号LM3485Q1MMX的Datasheet PDF文件第2页浏览型号LM3485Q1MMX的Datasheet PDF文件第3页浏览型号LM3485Q1MMX的Datasheet PDF文件第4页浏览型号LM3485Q1MMX的Datasheet PDF文件第5页浏览型号LM3485Q1MMX的Datasheet PDF文件第6页浏览型号LM3485Q1MMX的Datasheet PDF文件第7页 
September 29, 2009  
LM3485  
Hysteretic PFET Buck Controller  
General Description  
Features  
The LM3485 is a high efficiency PFET switching regulator  
controller that can be used to quickly and easily develop a  
small, low cost, switching buck regulator for a wide range of  
applications. The hysteretic control architecture provides for  
simple design without any control loop stability concerns us-  
ing a wide variety of external components. The PFET archi-  
tecture also allows for low component count as well as ultra-  
low dropout, 100% duty cycle operation. Another benefit is  
high efficiency operation at light loads without an increase in  
output ripple.  
Easy to use control methodology  
No control loop compensation required  
4.5V to 35V wide input range  
1.242V to VIN adjustable output range  
High Efficiency 93%  
±1.3% (±2% over temp) internal reference  
100% duty cycle  
Maximum operating frequency > 1MHz  
Current limit protection  
Current limit protection is provided by measuring the voltage  
across the PFET’s RDS(ON), thus eliminating the need for a  
sense resistor. The cycle-by-cycle current limit can be adjust-  
ed with a single resistor, ensuring safe operation over a range  
of output currents.  
MSOP-8  
Applications  
Set-Top Box  
DSL/Cable Modem  
PC/IA  
Auto PC  
TFT Monitor  
Battery Powered Portable Applications  
Distributed Power Systems  
Always On Power  
Typical Application Circuit  
20034608  
Connection Diagram  
Top View  
20034609  
8 Lead Plastic MSOP-8  
NS package Number MUA08A  
© 2009 National Semiconductor Corporation  
200346  
www.national.com  

LM3485Q1MMX 替代型号

型号 品牌 替代类型 描述 数据表
LM3485Q1MM NSC

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