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LM26400YSDX PDF预览

LM26400YSDX

更新时间： 2024-11-23 20:03:59
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德州仪器 - TI 信息通信管理开关
页数 文件大小 规格书
31页 6638K
描述
2A SWITCHING REGULATOR, 500kHz SWITCHING FREQ-MAX, DSO16, LLP-16

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LM26400YSDX 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：LCC
包装说明：HVSON, SOLCC16,.2,20针数：16
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.18
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：S-XDSO-N16长度：5 mm
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：UNSPECIFIED
封装代码：HVSON封装等效代码：SOLCC16,.2,20
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）：NOT SPECIFIED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
最大切换频率：500 kHz技术：BICMOS
温度等级：AUTOMOTIVE端子形式：NO LEAD
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：5 mm
Base Number Matches：1

LM26400YSDX 数据手册

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LM26400Y  
www.ti.com  
SNVS457C –FEBRUARY 2007–REVISED APRIL 2013  
LM26400Y Dual 2A, 500kHz Wide Input Range Buck Regulator  
Check for Samples: LM26400Y  
1
FEATURES  
DESCRIPTION  
The LM26400Y is a monolithic, two-output fixed  
frequency PWM step-down DC/DC regulator in a 16-  
pin WSON or thermally enhanced HTSSOP package.  
With a minimum number of external components and  
internal loop compensation, the LM26400Y is easy to  
use. The ability to drive 2A loads with an internal  
175mΩ NMOS 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  
control 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  
included, enabling separate turn-on and turn-off of  
the two channels. 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.  
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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  
175mΩ NMOS Switch  
Integrated Bootstrap Diodes  
Over-Current Protection  
HTSSOP and WSON Packages  
Thermal Shutdown  
APPLICATIONS  
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DTV-LCD  
Set-Top Box  
XDSL  
Automotive  
Computing Peripherals  
Industrial Controls  
Point of Load  
Typical Application  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007–2013, Texas Instruments Incorporated  
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