0.85V启动，3W输出功率 真关断同步升压转换器CXSU6387是一款0.85V启动，输出功率达3W，并能真关断的同步升压转换器。CXSU6387真关断的特性可以实现真正的关断和短路保护，免除了客户在USB接口应用时，在升压后面再加限流器来实现接口短路保护，大大节省了成本。同时CXSU6387在空载待机时，功耗低至40uA左右。加之其可使用体积超小的陶片电容，2M开关频率，

                          目录yAC嘉泰姆

   1.产品概述      2.产品特点      3.应用范围     4.技术规格书下载（PDF文档）</span>yAC嘉泰姆

   5.产品封装      6.电路原理图</strong>     7.相关产品yAC嘉泰姆

一.产品概述yAC嘉泰姆

 CXSU6387是一款0.85V启动，输出功率达3W，并能真关断的同步升压转换器。CXSU6387真关断的特性可以实现真正的关断和短路保护，免除了客户在USB接口应用时，在升压后面再加限流器来实现接口短路保护，大大节省了成本。同时CXSU6387在空载待机时，功耗低至40uA左右。加之其可使用体积超小的陶片电容，2M开关频率，可采用超小的电感以及本身SOT23-5的小体积封装，特别适合PCB空间有限的手持设备，如智能手机，平板电脑等。CXSU6387采用固定输出电压方式，有2.1V，3.3V，5.0V三种电压可选。</span> yAC嘉泰姆

  The CXSU6387 is a high efficiency synchronous step-up converter that can provide up to 3W of power to a boosted output from a low voltage source. Unlike most step-up converter, not only it starts up at a very low input voltage as low as 0.85V, it also incorporates circuits that disconnect the input from output, during shutdown, short-circuit, output current overloading, or other events when output is higher than the input. This eliminates the need for an external MOSFET and its control circuitry to disconnect the input from output, and provides robust output overload protection. The CXSU6387 starts up from a voltage as low as 0.85V making it ideal for applications with single-cell or two-cell alkaline, NiCd, and NiMh batteries. A switching frequency of 2MHz minimizes solution footprint by allowing the use of tiny and low profile inductors and ceramic capacitors. An internal synchronous MOSFET provides highest efficiency and with a current mode control that is internally compensated, external parts count is reduced to minimal. CXSU6387 is available in three output voltage options. They are 2.1V, 3.3V and 5V. It is housed in a tiny SOT23-5 package.yAC嘉泰姆

二.产品特点yAC嘉泰姆

◆</span>0.85V启动
◆</span>3W输出功率
◆</span>高达96%的转换效率</span>
◆</span>2MHz开关频率</span>
◆</span>PWM控制方式yAC嘉泰姆

◆</span>空载待机电流50uA
◆</span>输出真关断</span>
◆</span>真正的短路保护功能</span>
◆</span>固定输出电压2.1/3.3/5.0VyAC嘉泰姆

◆</span>Output Disconnect yAC嘉泰姆

◆</span> Short-circuit Protection yAC嘉泰姆

◆</span> 3W Output Power yAC嘉泰姆

◆</span> Output to Input Reversed Current Protection yAC嘉泰姆

◆</span> 0.85V Low Start-up Voltage yAC嘉泰姆

◆</span> VIN range from 0.6V to 4.5V yAC嘉泰姆

◆</span> Up to 96% Efficiency yAC嘉泰姆

◆</span> 40μA No load IQ and light load PFM Mode yAC嘉泰姆

◆</span> Internal Synchronous Rectifier yAC嘉泰姆

◆</span> Current Mode control yAC嘉泰姆

◆</span> Logic Control Shutdown and Thermal shutdown yAC嘉泰姆

◆</span> SOT23-5 PackageyAC嘉泰姆

三.应用范围yAC嘉泰姆

◆</span>智能手机
◆</span>平板电脑
◆</span>移动电源
◆</span>移动MIFI
◆</span>其他电池供电类设备</span>    yAC嘉泰姆

四.技术规格书（产品PDF)yAC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</span>！</span>yAC嘉泰姆

 yAC嘉泰姆

五.产品封装图</span>yAC嘉泰姆

  yAC嘉泰姆

六.电路原理图</strong>yAC嘉泰姆

   yAC嘉泰姆

七.相关芯片选择指南yAC嘉泰姆