2.7V到5.5V可调输出电压1MHz固定频率2A输出电流同步降压型转换器CXSD62278 PWM模式纹波低软启动
发表时间:2020-05-13
浏览次数:297

目录

1.产品概述       2.产品特点     Tvu嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)Tvu嘉泰姆

5.产品封装       6.电路原理图  Tvu嘉泰姆

7.相关产品Tvu嘉泰姆

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    CXSD62278是一款1MHz固定频率、电流模、同步降压型直流-直流转换器,能够提供高达2A的输出电流。其输入电压范围为2.7V到5.5V,提供0.8V到5V可调输出电压。同步开关内部集成提高了转换效率,不需要外接肖特基二极管。PWM模式使得输出电压纹波非常低,适于噪声敏感应用。CXSD62278的短路保护和过温保护功能提高了系统的可靠性。软启动外部可调,避免上电过程产生浪涌电流。芯片采用SOP-8封装。The CXSD62278 is a 1 MHz fixed frequency synchronous, current-mode, step-down dc-dc converter capable of providing up to 2A output current. The CXSD62278 operates from an input range of 2.7V to 5.5V and provides a regulated output voltage from 0.8V to 5V. The internal synchronous power switch improves efficiency and eliminates the need for an external Schottky diode. Forced PWM operation provides very low output ripple voltage for noise sensitive applications. The CXSD62278 features short circuit and thermal protection circuits to improve system reliability. Externally adjustable soft-start avoids input inrush current during startup. The CXSD62278is available in SOP-8 package.

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• 输入电压范围为2.7V到5.5VTvu嘉泰姆

• 转换效率高达96%Tvu嘉泰姆

• 2A负载电流Tvu嘉泰姆

• 100/60mΩ的P型/N型集成开关Tvu嘉泰姆

• 1MHz开关频率Tvu嘉泰姆

• 100%占空比低压差工作Tvu嘉泰姆

• 短路保护和过温保护Tvu嘉泰姆

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• SOP-8封装Tvu嘉泰姆

• 符合RoHS规范、Pb-Free与Halogen-FreeTvu嘉泰姆

 2.7V to 5.5V Input Voltage RangeTvu嘉泰姆

 High Efficiency up to 96%Tvu嘉泰姆

 2A Available Load CurrentTvu嘉泰姆

 100/60m Integrated PFET/NFET SwitchesTvu嘉泰姆

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 Short Circuit and Thermal ProtectionTvu嘉泰姆

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 Excellent Line and Load Transient ResponseTvu嘉泰姆

 Available in SOP-8 PackageTvu嘉泰姆

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

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