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Datasheet Microchip MIC2203YMM

Part NumberMIC2203YMM

The MIC2203 is a high efficiency 1MHz PWM synchronous buck switching regulator


  • Download » Datasheet PDF, 2.8 Mb, Revision: 11-05-2015
    MIC2203 - High Efficiency 1MHz Synchronous Buck Regulator
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    High Efficiency 1MHz Synchronous
    Buck Regulator General Description Features The Micrel MIC2203 is a high efficiency 1MHz PWM
    synchronous buck switching regulator. The MIC2203
    features low noise constant frequency PWM
    operation with a low dynamic supply current of
    <1mA. The low noise and efficient operation both
    make the MIC2203 well suited for sensitive RF, and
    audio power applications.
    The MIC2203 operates from 2.3V to 5.5V input and
    can supply over 300mA of output current with output
    voltages down to 0.5V. Additionally, the MIC2203
    can be synchronized to an external clock, or multiple
    MIC2203s can easily be daisy-chained with the
    SYNCLOCK feature.
    The MIC2203 has a high loop bandwidth with
    corresponding ultra fast transient response times.
    This reduces the output capacitor size, and is very
    useful when powering applications that require fast
    dynamic response such as CPU cores and RF
    circuitry in high performance cellular phones and
    The MIC2203 is available in 10-pin MSOP and ...



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




# of Outputs1
Automotive RatedNo
Duty Cycle Max1 %
Input Voltage Range2.3 - 5.5 V
Light Load Efficiency ModeNo
Operating Temperature Range-40 to +125 °C
Output Current600 mA) Max
Output Voltage Range0.5 - 5.5 V
Quiescent Current0.32 mA) type
Regulator TypeStep Down (Buck)
SHUTDOWN Current0.01 µA
Switching Frequency1000 kHz
Synchronous RectifierYes
Vfb0.5 V

Eco Plan


Moldel Line

Series: MIC2203 (3)

Manufacturer's Classification

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