目录

• 1.产品概述       2.产品特点     WCH嘉泰姆

• 3.应用范围       4.技术规格书下载（PDF文档）WCH嘉泰姆

• 5.产品封装       6.电路原理图  WCH嘉泰姆

• 7.相关产品WCH嘉泰姆

   产品概述 返回TOPWCH嘉泰姆

      The CXSU63041 devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-polymer, or a two to three-cell alkaline, NiCd or NiMH battery. The converter generates a stable output voltage that is either adjusted by an external resistor divider. It provides high efficient power conversion and is capable of delivering output currents up to 1.5A at 5V at a supply voltage down to 2V. The implemented boost converter is based on a fixed switching frequency (500kHz typical), current-mode controller using a synchronous rectifier to obtain maximum efficiency. Boost switch and rectifier switch are connected internally to provide the lowest leakage inductance and best EMI behavior possible. The current-mode control scheme provides fast transient response and good output voltage accuracy. At light load, the converter will automatically enter into 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 a wide load current range. The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. The device allows use of small inductors and output capacitors for USB devices.

   产品特点 返回TOPWCH嘉泰姆

 97% Efficiency at VOUT=5V from 3.3V Input WCH嘉泰姆

 Device Quiescent Current: 37μA (Typ) WCH嘉泰姆

 Guaranteed 2.5A Output Current at VOUT=5V from 3.3V Input WCH嘉泰姆

 500kHz PWM Switching Frequency WCH嘉泰姆

 Synchronous and Embedded Power MOSFETs, No Schottky Diode Required WCH嘉泰姆

 Low RDS(ON) (main switch/synchronous switch) at 5.0V output:   20/40mohm WCH嘉泰姆

 Input Voltage Range: 1.8V to 5.25V WCH嘉泰姆

 Adjustable Output Voltage Range: from 2.5V to 5.5V WCH嘉泰姆

 Pulse Frequency Modulation Operation for Improved Efficiency at Low Output Power WCH嘉泰姆

 Current Mode Operation with Internal Compensation for Excellent Line    and Load Transient Response WCH嘉泰姆

 Logic Controlled Shutdown(<1μA) WCH嘉泰姆

 Load Disconnect During Shutdown WCH嘉泰姆

 Automatic output discharge at shutdown: WCH嘉泰姆

    CXSU63041A: Auto output discharge function WCH嘉泰姆

   CXSU63041B: No output discharge function WCH嘉泰姆

 Low Battery Comparator WCH嘉泰姆

 Internal Soft-Start to Limit Inrush Current WCH嘉泰姆

 Over Current Protection WCH嘉泰姆

 Input Under Voltage Lockout WCH嘉泰姆

 Output Over Voltage Protection WCH嘉泰姆

 Over-Temperature Protection WCH嘉泰姆

 Available in 2.1mm x 2.1mm QFN10 PackageWCH嘉泰姆

   应用范围 返回TOPWCH嘉泰姆

 All Single Cell Li or Dual Cell Battery Operated Products as Tablet PC, Smartbook and Other Portable Equipment WCH嘉泰姆

 Products including portable HDMI and USB-OTG WCH嘉泰姆

 USB Hosts Without Native 5V Supplies WCH嘉泰姆

 USB Charging Port (5V) WCH嘉泰姆

 Power Bank, Battery Backup Units WCH嘉泰姆

 Wireless Peripherals WCH嘉泰姆

 Portable Audio Players WCH嘉泰姆

 Personal Medical Devices WCH嘉泰姆

 Industrial Metering Equipments WCH嘉泰姆

 DC/DC Micro ModulesWCH嘉泰姆

   技术规格书（产品PDF) 返回TOP WCH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！WCH嘉泰姆

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产品封装图 返回TOPWCH嘉泰姆

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电路原理图 返回TOPWCH嘉泰姆

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