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1.5A DDR总线终端提供电源高性能线性终端稳压器CXTP65156串联终端电阻连接的方式VTT的输出将处于高阻状态
发表时间:2020-06-29浏览次数:4
1.5A DDR总线终端提供电源高性能线性终端稳压器CXTP65156串联终端电阻连接的方式VTT的输出将处于高阻状态
 

目录

1.产品概述       2.产品特点     3BO嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)3BO嘉泰姆

5.产品封装       6.电路原理图  3BO嘉泰姆

7.相关产品3BO嘉泰姆

   产品概述 返回TOP3BO嘉泰姆


        CXTP65156是一款为DDR内存总线的终端提供电源而专门设计的高性能线性稳压器,同以往开关型解决方案相比,它大大减少了外围器件的个数和占用的PCB空间,并降低了系统的整体成本。CXTP65156的高速运算放大器对负载具有快速优良的瞬态响应,CXTP65156还采用了VSENSE pin以达到优越的负载调整率;CXTP65156采用VREF输出为chipset和DIMMs提供基准电压。CXTP65156的另外一个特点是设计了低电压有效关断pin SD,当SD被拉低时,VTT的输出将处于高阻状态;但VREF依然保持在有效状态,在这种状态下,芯片因为其低的静态电流而功耗减小。CXTP65156利用与串联终端电阻连接的方式为高速传输线的有源终端结构提供优良的电压源。The CXTP65156 is a high performance linear regulator designed to provide power for termination of a DDR memory bus. It significantly reduces parts count, board space and overall system cost over previous switching solutions. The CXTP65156 contains a high-speed operational amplifier to provide excellent response to load transients. The CXTP65156 also incorporates a VSENSE pin to provide superior load regulation and a VREF output as a reference for chipset and DIMMs. An additional feature found on the CXTP65156 is an active low shutdown (SD ) pin. When SD is pulled low the VTT output will Tri-state providing a high impedance output, but, VREF will remain active. A power savings advantage can be obtained in this mode through lower quiescent current. The CXTP65156, used in conjunction with series termination resistors, provides an excellent voltage source for active termination schemes of high speed transmission lines as those seen in high speed memory buses.

   产品特点 返回TOP3BO嘉泰姆


•输入电源电压(AVIN):3.15V~5.5V3BO嘉泰姆

•VLDOIN电源输入范围:1.5V~3.3V3BO嘉泰姆

•快速瞬态响应3BO嘉泰姆

•DDR-Ⅱ和DDR-Ⅲ的终端电压:3BO嘉泰姆

•可稳定提供/吸收1.5A电流3BO嘉泰姆

•低电流关断模式3BO嘉泰姆

•过温保护功能3BO嘉泰姆

•全负载高精度输出电压3BO嘉泰姆

•外围器件少3BO嘉泰姆

•SOP_8封装3BO嘉泰姆

•符合RoHS规范,100%无铅及Pb-Free 和Halogen-Free3BO嘉泰姆

 Input Voltage Range (AVIN): 3.15V to 5.5V3BO嘉泰姆

  VLDOIN Voltage Range : 1.5V to 3.3V3BO嘉泰姆

  Fast Transient Response Time3BO嘉泰姆

  Support DDRⅡ and DDRⅡ Requirements: Source/Sink 1.5A for DDRⅡ3BO嘉泰姆

 Source/Sink 1.5A for DDRⅡ3BO嘉泰姆

  Low-Current Shutdown Mode3BO嘉泰姆

  Over-Temperature Protection3BO嘉泰姆

  High Accuracy Output Voltage at Full-Load3BO嘉泰姆

  Low External Component Count3BO嘉泰姆

  Available in SOP-8 (EP) Package3BO嘉泰姆

  RoHS Compliant and 100% Lead (Pb)-Free Halogen-Free3BO嘉泰姆

   应用范围 返回TOP3BO嘉泰姆


•可为DDR-Ⅱ和DDR-Ⅲ提供终端电压 3BO嘉泰姆

DDR-Ⅱ and DDR-Ⅱ termination voltage3BO嘉泰姆

   技术规格书(产品PDF) 返回TOP 3BO嘉泰姆


     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持3BO嘉泰姆

 QQ截图20160419174301.jpg3BO嘉泰姆

产品封装图 返回TOP3BO嘉泰姆


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电路原理图 返回TOP3BO嘉泰姆


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