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升降压芯片

ME3148

    The ME3148 is a 160KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator.

    The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.
    ME3148 Description
        The ME3148 is a 160KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator.
        The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.

    ME3148 Features 
    Input Voltage Range 8V~36V 
    Maximum output current 3A 
    Fixed 160KHz Switching Frequency
    Output Adjustable from 1.25V to 33V 
    Minimum Drop Out 0.3V 
    Internal Optimize Power MOSFET 
    Excellent line and load regulation 
    With output constant current loop 
    Built in OTP,OCP and OVP 
    Recommend output power less than 13W

    ME3148 Applications 
    Car Charger 
    Battery Charger 
    Portable instrument power supply 
    Buck constant current driver 
    Monitor LED Backlighting 
    General purpose LED lighting

    ME3148 Package
    8-pin ESOP8

    ME3148 Typical Application(Constant Voltage Charge)

    ME3148 Typical Application(Constant Voltage Constant Current Charge)

    ME3148 Typical Application(Constant Current LED Driver )

    ME3148 Selection Guide

    Product Series
    Package
    ME3148ASPG
    ESOP8

    ME3148 Pin Configuration

    ME3148 Pin Assignment

    ME3148 Block Diagram

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