2.5A输出电流500KHz同步升压转换器CXSU63041B同步和嵌入式功率mosfet内部软启动以限制涌入电流

目录

• 1.产品概述       2.产品特点     qcr嘉泰姆

• 3.应用范围       4.技术规格书下载（PDF文档）qcr嘉泰姆

• 5.产品封装       6.电路原理图  qcr嘉泰姆

• 7.相关产品qcr嘉泰姆

   产品概述 返回TOPqcr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TOPqcr嘉泰姆

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

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

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

 500kHz PWM Switching Frequency qcr嘉泰姆

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

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

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

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

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

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

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

 Load Disconnect During Shutdown qcr嘉泰姆

 Automatic output discharge at shutdown: qcr嘉泰姆

    CXSU63041A: Auto output discharge function qcr嘉泰姆

   CXSU63041B: No output discharge function qcr嘉泰姆

 Low Battery Comparator qcr嘉泰姆

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

 Over Current Protection qcr嘉泰姆

 Input Under Voltage Lockout qcr嘉泰姆

 Output Over Voltage Protection qcr嘉泰姆

 Over-Temperature Protection qcr嘉泰姆

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

   应用范围 返回TOPqcr嘉泰姆

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

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

 USB Hosts Without Native 5V Supplies qcr嘉泰姆

 USB Charging Port (5V) qcr嘉泰姆

 Power Bank, Battery Backup Units qcr嘉泰姆

 Wireless Peripherals qcr嘉泰姆

 Portable Audio Players qcr嘉泰姆

 Personal Medical Devices qcr嘉泰姆

 Industrial Metering Equipments qcr嘉泰姆

 DC/DC Micro Modulesqcr嘉泰姆

   技术规格书（产品PDF) 返回TOP qcr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！qcr嘉泰姆

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产品封装图 返回TOPqcr嘉泰姆

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电路原理图 返回TOPqcr嘉泰姆

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