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LM26400YMHX PDF预览

LM26400YMHX

更新时间: 2024-11-23 04:44:39
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信息通信管理
页数 文件大小 规格书
24页 2449K
描述
Dual 2A, 500kHz Wide Input Range Buck Regulator

LM26400YMHX 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:ETSSOP-16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.16Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:20 V
最小输入电压:3 V标称输入电压:5 V
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:5 mm湿度敏感等级:3
功能数量:2端子数量:16
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:2 A封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP封装等效代码:TSSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.1 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:500 kHz技术:BICMOS
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn85Pb15)
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:40
宽度:4.4 mmBase Number Matches:1

LM26400YMHX 数据手册

 浏览型号LM26400YMHX的Datasheet PDF文件第2页浏览型号LM26400YMHX的Datasheet PDF文件第3页浏览型号LM26400YMHX的Datasheet PDF文件第4页浏览型号LM26400YMHX的Datasheet PDF文件第5页浏览型号LM26400YMHX的Datasheet PDF文件第6页浏览型号LM26400YMHX的Datasheet PDF文件第7页 
February 2007  
LM26400Y  
Dual 2A, 500kHz Wide Input Range Buck Regulator  
General Description  
Features  
The LM26400Y is a monolithic, two-output fixed frequency  
PWM step-down DC/DC regulator in a 16-pin LLP or thermally  
enhanced ETSSOP package. With a minimum number of ex-  
ternal components and internal loop compensation, the  
LM26400Y is easy to use. The ability to drive 2A loads with  
an internal 175mNMOS switch using state-of-the-art 0.5µm  
BiCMOS technology results in a high-power density design.  
The world class control circuitry allows for an ON-time as low  
as 40 ns, thus supporting high-frequency conversion over the  
entire input range of 3V to 20V and down to an output voltage  
of only 0.6V. The LM26400Y utilizes peak current-mode con-  
trol and internal compensation to provide high-performance  
regulation over a wide range of line and load conditions.  
Switching frequency is internally set to 500kHz, optimal for a  
broad range of applications in terms of size versus thermal  
tradeoffs. Given a non-synchronous architecture, efficiencies  
above 90% are easy to achieve. External shutdown is includ-  
ed, enabling separate turn-on and turn-off of the two chan-  
nels. Additional features include programmable soft-start  
circuitry to reduce inrush current, pulse-by-pulse current limit  
and frequency foldback, integrated bootstrap structure and  
thermal shutdown.  
Input voltage range of 3-20V  
Dual 2A output  
Output voltage down to 0.6V  
Internal compensation  
500kHz PWM frequency  
Separate enable pins  
Separate soft start pins  
Frequency foldback protection  
175mNMOS switch  
Integrated bootstrap diodes  
Over-current protection  
ETSSOP and LLP packages  
Thermal shutdown  
Applications  
DTV-LCD  
Set-Top Box  
XDSL  
Automotive  
Computing Peripherals  
Industrial Controls  
Point of Load  
Typical Application  
20200252  
© 2007 National Semiconductor Corporation  
202002  
www.national.com  

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