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    首頁產(chǎn)品索引MIC2800

    MIC2800

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    DC-DC + 2 Linear Regulators with LowQ, Mode

    制造商:Microchip

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    The MIC2800 is a high performance power management IC, giving three output voltages with maximum efficiency. Integrating a 2MHz DC/DC converter with an LDO post regulator, the MIC2800 gives two high efficiency outputs with a second, 300mA LDO for maximum flexibility. The MIC2800 features a LowQ??mode, reducing the total current draw while in this mode to less than 30μA. In LowQ??mode, the output noise of the DC to DC converter is 75μVRMS, significantly lower than other converters which use a PFM light load mode that can interfere with sensitive RF circuitry.The DC to DC converter uses small values of L and C to reduce board space but still retains efficiencies over 90% at load currents up to 600mA.The MIC2800 is a μCap design, operating with very small ceramic output capacitors and inductors for stability, reducing required board space and component cost.

      2.7V to 5.5V input voltage range

      2MHz DC/DC converter and two stand-alone LDOs

      LDO1: Low input voltage is powered directly from DC/DC converter for highest efficiency

      Integrated power-on reset (OR function for all outputs)

      Adjustable delay time

      LowQ??mode

      30μA Total IQ?when in LowQ??mode

    DC to DC Converter

      Output current to 600mA in PWM mode

      LowQ??Mode: no noise light load mode

      75μVRMS?output noise in LowQ??mode

      2 MHz PWM operation in normal mode

      >90% efficiency

    LDOs

      LDO1 input voltage directly connected to DC/DC converter output voltage for maximum efficiency

      Ideal for 1.8V to 1.5V conversion

      300mA output current from 1.8V input

      Output voltage down to 0.8V

      LDO2: 300mA output current capable

      Thermal Shutdown Protection

      Current Limit Protection

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    型號(hào)制造商描述購買
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