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升降压芯片

MT2499A

    MT2499A是一个完全集成的,高效的3.5A同步整流降压转换器。
    MT2499A在一个较宽的输出电流负载范围内高效工作。
    该设备提供了两种操作模式,PWM控制和PFM模式切换控制,这允许在更广泛的负载范围内实现高效率。
    MT2499A需要最少数量的现成的标准外部组件,并且可以在一个与ESOP8 ROHS兼容的软件包中获得。
    MT2499A Description/概述:
        MT2499A是一个完全集成的,高效的3.5A同步整流降压转换器。
        MT2499A在一个较宽的输出电流负载范围内高效工作。
        该设备提供了两种操作模式,PWM控制和PFM模式切换控制,这允许在更广泛的负载范围内实现高效率。
        MT2499A需要最少数量的现成的标准外部组件,并且可以在一个与ESOP8 ROHS兼容的软件包中获得。
        The MT2499A is a fully integrated, high– efficiency 3.5A synchronous rectified step-down converter. 
        The MT2499A operates at high efficiency over a wide output current load range.
        This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high efficiency over the wider range of the load.
        The MT2499A requires a minimum number of readily available standard external components and is available in an ESOP8 ROHS compliant package.

    MT2499A Features/特性:
    High Efficiency: Up to 94%
    340KHz Frequency Operation
    3.5A Output Current
    No Schottky Diode Required
    4.5V to 21V Input Voltage Range
    0.925V Reference
    Slope Compensated Current Mode Control for Excellent Line and Load Transient Response
    Integrated internal compensation
    Stable with Low ESR Ceramic Output Capacitors
    Over Current Protection with Hiccup-Mode
    Thermal Shutdown
    Inrush Current Limit and Soft Start
    Available in ESOP8 Package
    -40°C to +85°C Temperature Range

    MT2499A Applications/应用:
    Distributed Power Systems
    Digital Set Top Boxes
    Flat Panel Television and Monitors 
    Wireless and DSL Modems
    Notebook Computer

    MT2499A Typical Application:

    MT2499A Package/Order Information:
    Order Part Number
    Package
    Top Marking
     

    MT2499A

    ESOP8

    MT2499A

    YMNNVV

    LLLLLL

    MT2499A Pin Description:

    MT2499A Functional Block Diagram:
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