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LM26400YMH PDF预览

LM26400YMH

更新时间: 2024-09-14 04:44:39
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
24页 2449K
描述
Dual 2A, 500kHz Wide Input Range Buck Regulator

LM26400YMH 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:5.16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 VJESD-30 代码:R-PDSO-G16
JESD-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 mm
Base Number Matches:1

LM26400YMH 数据手册

 浏览型号LM26400YMH的Datasheet PDF文件第2页浏览型号LM26400YMH的Datasheet PDF文件第3页浏览型号LM26400YMH的Datasheet PDF文件第4页浏览型号LM26400YMH的Datasheet PDF文件第5页浏览型号LM26400YMH的Datasheet PDF文件第6页浏览型号LM26400YMH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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