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Datasheet Microchip MIC2238-G4YML-TR

Part NumberMIC2238-G4YML-TR

The MIC2238 is dual output 2-phase synchronous buck (step down) PWM DC/DC switching regulator


  • Download » Datasheet PDF, 1.1 Mb, Revision: 09-11-2017
    MIC2238 Data Sheet
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    2.5MHz Dual Phase
    PWM Buck Regulator General Description Features The Micrel MIC2238 is dual output 2-phase synchronous
    buck (step down) PWM DC/DC switching regulator. Power
    conversion efficiencies of above 95% are easily obtainable
    for a wide range of applications and loads. An ultra-low
    quiescent current of 28ВµA at light loads assures minimum
    current draw in battery powered applications that require
    standby modes. The 2.5MHz PWM operation of MIC2238
    allows the use of miniature 1ВµH, 2.2ВµH or 4.7ВµH inductor
    with the use of 2.2ВµF ceramic output capacitor.
    The MIC2238 operates from 2.5V to 5.5V input and is
    available in fixed output voltage versions to save space
    and reduce external component count. The MIC2238-AA’s
    (adjustable version) output voltage versions can be
    programmed as low as 0.8V
    For applications that require the lowest noise performance,
    the /FPWM pin allows the automatic Trickle mode to be
    disabled, remaining in full PWM mode. To maximize
    battery life in low-dropout conditions, MIC2238 can
    operate with a maximum duty cycle of 100%.
    The MIC2238 is available in a space-saving 3mm x 3mm
    MLFВ®-12L package with a junction temperature range from ...



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




# of Outputs2
Automotive RatedNo
Duty Cycle Max1 %
Input Voltage Range2.5 - 5.5 V
Light Load Efficiency ModeNo
Operating Temperature Range-40 to +125 °C
Output Current2000 mA) Max
Output Voltage Range0.8 - 5.5 V
Regulator TypeStep Down (Buck)
SHUTDOWN Current1 µA
Switching Frequency2500 kHz
Synchronous RectifierYes
Vfb0.8 V

Eco Plan


Moldel Line

Series: MIC2238 (7)

Manufacturer's Classification

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

Other Names:


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