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2.25MHz的固定频率1A负载电流能力2.7V到5.5V的输入电压CXSD62268同步降压DC/DC适合一节锂电池或三节的镍氢电池/镍铬电池的便携式设备
发表时间：2020-05-12
浏览次数：53

目录

1.产品概述       2.产品特点     Spg嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）Spg嘉泰姆

5.产品封装       6.电路原理图  Spg嘉泰姆

7.相关产品Spg嘉泰姆

   产品概述 返回TOPSpg嘉泰姆

    CXSD62268是一款应用于电池供电的便携式设备的同步降压DC/DC。2.5V到5.5V的输入电压范围使CXSD62268适合工作在一节锂电池或三节的镍氢电池/镍铬电池的便携式设备。该芯片也可工作于标准的3.3V或5V电压。CXSD62268工作在2.25MHz的固定开关频率下，允许应用小的电感和电容以节省面积。内部同步开关管提升效率并无需外部肖特基二极管。CXSD62268内部集成了软启动功能，避免了电流启动过程中电流的过充。CXSD62268具有可供选择的force PWM和PFM/PWM模式。force PWM模式的纹波噪声小，而PFM模式具有轻载高效的优势。CXSD62268采用TDFN-6封装，并能提供高达1A的输出电流。The CXSD62268 is synchronous step-down DC-DC converters optimized for battery powered portable applications. The 2.7V to 5.5V input voltage range makes CXSD62268 ideal for powering portable equipment that runs from 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3V or 5V voltage rail. The CXSD62268 operates at 2.25MHz fixed switching frequency allowing the use of small inductors and capacitors to achieve a small solution size. The internal synchronous switch increases efficiency and eliminates the need for an external schottky diode. The CXSD62268 has internal soft start and avoids inrush current during startup. The CXSD62268 has a user selectable mode of forced PWM and PFM/PWM mode. The forced PWM mode operation provides the lowest ripple noise and the PFM mode operation provides high efficiency at light loads. The CXSD62268is available in SOT23-5 and TDFN-6 package. For TDFN-6 package, it provides up to 1A output current.

   产品特点 返回TOPSpg嘉泰姆

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•高至95%的效率Spg嘉泰姆

•2.25MHz的固定频率Spg嘉泰姆

•1A负载电流能力Spg嘉泰姆

•典型30μA的静态电流Spg嘉泰姆

•2.7V到5.5V的输入电压范围Spg嘉泰姆

•低至0.6V的可调输出电压Spg嘉泰姆

•无需肖特基二极管Spg嘉泰姆

•短路保护和过温保护Spg嘉泰姆

•内部软启动功能Spg嘉泰姆

TDFN-6的封装Spg嘉泰姆

符合ROHS标准和100%无铅Spg嘉泰姆

 High Efficiency Up to 95%Spg嘉泰姆

 2.25MHz Constant Switching FrequencySpg嘉泰姆

 1A Available Load CurrentSpg嘉泰姆

 30μATypical Quiescent CurrentSpg嘉泰姆

 2.7V to 5.5V Input Voltage RangeSpg嘉泰姆

 Adjustable Output Voltage as Low as 0.6VSpg嘉泰姆

 No Schottky Diode RequiredSpg嘉泰姆

 Short Circuit and Thermal ProtectionSpg嘉泰姆

 Internal Soft Start FunctionSpg嘉泰姆

 Available in TDFN-6 and SOT23-5 PackagesSpg嘉泰姆

 RoHS Compliant and 100% Lead(Pb)-FreeSpg嘉泰姆

Halogen-FreeSpg嘉泰姆

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   技术规格书（产品PDF) 返回TOP Spg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！Spg嘉泰姆

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产品封装图 返回TOPSpg嘉泰姆

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电路原理图 返回TOPSpg嘉泰姆

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