自动进入脉冲频率调制PFM CXSU63141同步整流器固定开关频率1MHz电流模式升压调节器内同步整流器效率高达92%

目录

1.产品概述       2.产品特点     kR4嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）kR4嘉泰姆

5.产品封装       6.电路原理图  kR4嘉泰姆

7.相关产品kR4嘉泰姆

   产品概述 返回TOPkR4嘉泰姆

The CXSU63141 is a synchronous rectifier, fixed switching frequency (1MHz typical), and current-mode step-up regulator. The device allows use of small inductors and output capacitors for portable devices. The current-mode control scheme provides fast transient response and good output voltage accuracy   

At light loads, the CXSU63141 will automatically enter in pulse frequency modulation(PFM) operation to reduce the dominant switching losses. During PFM operation, the IC consumes very low quiescent current and maintains high efficiency over the complete load range. The device has a 1.05V start-up voltage and can operate with input voltage down to 0.8V after start-up The CXSU63141 also includes current-limit and over-temperature shutdown to prevent damage in the event of an output overload. The CXSU63141 is available in 2mmx2mm TDFN2x2-8 and TSOT-23-6A packages.

   产品特点 返回TOPkR4嘉泰姆

· Wide 0.8V to VOUT Input Voltage Range kR4嘉泰姆

· Low 1.05V (typical) Start-Up Voltage kR4嘉泰姆

· Low 40mA No Load Bias Current kR4嘉泰姆

· 100mA Output from a Single AA Cell Input kR4嘉泰姆

· 250mA Output from a Dual AA Cell Input kR4嘉泰姆

· Internal Synchronous Rectifier kR4嘉泰姆

· Up to 92% Efficiency kR4嘉泰姆

·<1mA Quiescent Current during Shutdown kR4嘉泰姆

· Current-Mode Operation with Internal Compensation kR4嘉泰姆

 - Stable with Ceramic Output Capacitors kR4嘉泰姆

 - Fast Line Transient ResponsekR4嘉泰姆

 · Fixed 1MHz Oscillator Frequency kR4嘉泰姆

· 1.2A Current-Limit Protection kR4嘉泰姆

· Built-In Soft-Start kR4嘉泰姆

· Over-Temperature Protection with Hysteresis kR4嘉泰姆

· Available in a 2mmx2mm TDFN2x2-8 and TSOT- 23-6A Packages kR4嘉泰姆

· Halogen and Lead Free Available (RoHS Compliant)kR4嘉泰姆

   应用范围 返回TOPkR4嘉泰姆

· Cell Phone and Smart Phone kR4嘉泰姆

· PDA, PMP, and MP3 kR4嘉泰姆

· Digital Camera kR4嘉泰姆

· Boost RegulatorkR4嘉泰姆

   技术规格书（产品PDF) 返回TOP kR4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！kR4嘉泰姆

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产品封装图 返回TOPkR4嘉泰姆

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电路原理图 返回TOPkR4嘉泰姆

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