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Datasheet Microchip MIC4720YML-TR

Part NumberMIC4720YML-TR

The MIC4720 is a high efficiency PWM buck (step-down) regulator that provides up to 2A of output current


  • Download » Datasheet PDF, 1.0 Mb, Revision: 11-05-2015
    MIC4720 Data Sheet
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    3mm x 3mm 2.0MHz 2A Integrated
    Switch Buck Regulator General Description Features The Micrel MIC4720 is a high efficiency PWM buck (stepdown) regulator that provides up to 2A of output current.
    The MIC4720 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
    MIC4720 allows efficiencies over 92%, reduces external
    components count and eliminates the need for an
    expensive current sense resistor.
    The MIC4720 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 MIC4720 is available in the exposed pad 12-pin
    3mm x 3mm MLFВ® and 10-pin ePad MSOP package with a
    junction operating range from –40°C to +125°C. 2.7 to 5.5V supply voltage
    2.0MHz PWM mode
    Output current to 2A
    Up to 94% efficiency
    100% maximum duty cycle
    Adjustable output voltage option down to 1V
    Ultra-fast transient response
    Ultra-small external components
    Stable with a 1ВµH inductor and a 4.7ВµF output ...



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 Current1500 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: MIC4720 (3)

Manufacturer's Classification

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

Other Names:


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