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Datasheet Microchip MIC4723YMME

Part NumberMIC4723YMME

The MIC4723 is a high efficiency PWM buck (step-down) regulator that provides up to 3A of output current


  • Download » Datasheet PDF, 543 Kb, Revision: 11-05-2015
    MIC4723 Data Sheet
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    3A 2MHz Integrated Switch
    Buck Regulator General Description Features The Micrel MIC4723 is a high efficiency PWM buck (stepdown) regulator that provides up to 3A of output current.
    The MIC4723 operates at 2.0MHz and has proprietary
    internal compensation that allows a closed loop bandwidth
    of over 200KHz.
    The low on-resistance internal p-channel MOSFET of the
    MIC4723 allows efficiencies over 92%, reduces external
    components count and eliminates the need for an
    expensive current sense resistor.
    The MIC4723 operates from 2.7V to 5.5V input and the
    output can be adjusted down to 1V. The devices can
    operate with a maximum duty cycle of 100% for use in lowdropout conditions.
    The MIC4723 is available in the exposed pad 12-pin
    3mm x 3mm MLFВ® and 10-pin ePAD MSOP packages with
    a junction operating range from –40°C to +125°C.
    Data sheets and support documentation can be found on
    Micrel’s web site at: 2.7/3.0V to 5.5V supply voltage
    2.0MHz PWM mode
    Output current to 3A
    Up to 94% efficiency
    100% maximum duty cycle
    Adjustable output voltage option down to 1V ...


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Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)




# of Outputs1
Automotive RatedNo
Duty Cycle Max1 %
Input Voltage Range2.7 - 5.5 V
Light Load Efficiency ModeNo
Operating Temperature Range-40 to +125 °C
Output Current3000 mA) Max
Output Voltage Range1 - 5.5 V
Quiescent Current0.57 mA) type
Regulator TypeStep Down (Buck)
SHUTDOWN Current2 µA
Switching Frequency2000 kHz
Synchronous RectifierNo
Vfb1 V

Eco Plan


Moldel Line

Series: MIC4723 (3)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Down up to 6V
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