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LDO

ME1117

    ME1117系列是高精度、低噪声的LDO稳压器,能够提供超过1.0A的输出电流,在1.0A时的最大压降为1.3V。该系列包含六个固定输出电压,分别为1.2 V、1.5V、1.8 V、2.5 V、3.3 V和5.0 V,它们没有维持调节的最低负载要求。还包括一个可调输出版本,可以通过两个外部电阻器从1.25 V编程到20 V。片内微调将参考/输出电压调整到±2.0%的精度范围内。内部保护功能包括输出电流限制、安全工作区域补偿和热关机。ME1117系列可以在高达20 V的输入电压下工作。
    ME1117 General Description:
        ME1117 series are highly accurate, low noise, LDO Voltage Regulators that are capable of providing an output current that is in excess of 1.0A with a maximum dropout voltage of 1.3V at 1.0A. This series contains six fixed output voltages of 1.2 V, 1.5V,1.8 V, 2.5 V, 3.3 V, and 5.0 V that have no minimum load requirement to maintain regulation. Also included is an adjustable output version that can be programmed from 1.25 V to 20 V with two external resistors. On chip trimming adjusts the reference/output voltage to within ±2.0% accuracy. Internal protection features consist of output current limiting, safe operating area compensation, and thermal shutdown. The ME1117 series can operate with up to 20 V input.

    ME1117 Features:
    Output Current in Excess of 1.0A
    Dropout Voltage:1.07V@ IOUT =100mA
    Operating Voltage Range:4.8V~20V(ME1117A33)
    Highly Accuracy: ±2%
    Adjustable Output Voltage Option
    Standby Current:3.3mA(TPY.)
    High Ripple Rejection:60dB@1KHz(ME1117A33)
    Line Regulation: 0.1%(TYP.)
    Temperature Stability≤0.5%
    Current Limit(1.3A)
    Thermal Shutdown Protection(160℃)

    ME1117 Typical Application:
    Consumer and Industrial Equipment Point of Regulation
    Switching Power Supply Post Regulation
    Hard Drive Controllers
    Battery Chargers

    ME1117 Package:
    3-pin SOT223、TO252-2、SOT89-3

    ME1117 Typical Application Circuit:


    ME1117 Selection Guide:

    product series

    product description

    ME1117A15B3G

    VOUT =1.5V; Package:SOT223

    ME1117A18B3G

    VOUT =1.8V; Package:SOT223

    ME1117A25B3G

    VOUT =2.5V; Package:SOT223

    ME1117A33B3G

    VOUT =3.3V; Package:SOT223

    ME1117A33K3G

    VOUT =3.3V; Package:TO252-2

    ME1117A33PG

    VOUT =3.3V; Package:SOT89-3

    ME1117A50B3G

    VOUT =5.0V; Package:SOT223

    ME1117A50K3G

    VOUT =5.0V; Package:TO252-2

    ME1117FB3G

    VFB =1.25V; Package:SOT223

    ME1117 Pin Configuration:


    ME1117 Pin Assignment:


    ME1117 Block Diagram:

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