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Datasheet Microchip MIC2141YM5-TR

Part NumberMIC2141YM5-TR

The MIC2141 is a micropower boost switching regulator that can operate from 3- or 4-cell nickel-metal-hydride batteries or a single Li-Ion cell


  • Download » Datasheet PDF, 863 Kb, Revision: 11-05-2015
    MIC2141 - Micropower Boost Converter
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    Micropower Boost Converter General Description Features The MIC2141 is a micropower boost switching regulator Implements low-power boost, SEPIC, or flyback
    that can operate from 3-or 4-cell nickel-metal-hydride 2.2V to 14V input voltage
    batteries or a single Li-ion cell. This regulator employs a 330kHz switching frequency
    constant 330kHz, fixed 18% duty-cycle, gated-oscillator <2ВµA shutdown current
    architecture. 70ВµA quiescent current
    The MIC2141 can be used in applications where the 1.24V bandgap reference
    output voltage must be dynamically adjusted. The device
    features a control signal input which is used to Typical output current 1mA to 10mA
    proportionally adjust the output voltage. The control signal SOT23-5 package
    input has a gain of 6, allowing a 0.8V to 3.6V control signal
    to vary a 4.8V to 22V output.
    The MIC2141 requires only three external components to
    operate and is available in a tiny 5-pin SOT-23 package for LCD bias supply
    space and power-sensitive portable applications. The CCD digital camera supply
    MIC2141 draws only 70ВµA of quiescent current and can
    operate with an efficiency exceeding 85%.
    Data sheets and support documentation can be found on
    Micrel’s web site at:
    ___________________________________________________________________________________________________________ Typical Application
    Control Voltage
    vs. Output Voltage 10ВµH ...



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




Alternative TopologySEPIC, Flyback
Automotive QualNo
Input Voltage Range Max14 V
Input Voltage Range Min(V)2.5
Light Load Efficiency ModeNo
Operating Temperature Range-40 to +85 °C
Output Voltage Range Max22 V
Output Voltage Range Min2.8 V
Quiescent Current0.07 mA) typ
SHUTDOWN Current2 µA
Switch current1 A) typ
Switching Frequency330 kHz
Synchronous RectifierNo
Vfb1.24 V

Eco Plan


Moldel Line

Series: MIC2141 (1)
  • MIC2141YM5-TR

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Up (Boost) - Non-Synchronous Products

Other Names:


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