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Datasheet Microchip MIC2183YQS

Part NumberMIC2183YQS

MIC2183 is a high efficiency PWM synchronous buck control IC


  • Download » Datasheet PDF, 150 Kb, Revision: 11-05-2015
    MIC2183 - Low Voltage Synchronous Buck PWM Control IC
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    MIC2183 Micrel, Inc. MIC2183
    Low Voltage Synchronous Buck PWM Control IC General Description Features Micrel’s MIC2183 is a high efficiency PWM synchronous
    buck control IC. With its wide input voltage range of 2.9V to
    14V, the MIC2183 can be used to efficiently step voltages
    down in 1-or 2-cell Li Ion battery powered applications, as
    well as in fixed 3.3V, 5V, or 12V systems.
    Efficiencies over 90% are achievable over a wide range of
    load conditions with the MIC2183’s PWM control scheme.
    The operating frequency can be divided by two by raising the
    FREQ/2 pin to VDD. This allows the user to optimize efficiency
    versus board space. It also allows the MIC2183 to be externally synchronized to frequencies below its nominal 400KHz.
    The MIC2183 features an oscillator output, FreqOut, which
    can be used to implement a simple charge pump in low
    voltage applications. The output of the charge pump can be
    fed into the gate drive power circuitry via the VINP pin. This
    feature allows enhanced gate drive, hence higher efficiencies
    at low input voltages.
    MIC2183 also features a 1ВµA shutdown mode, and a programmable undervoltage lockout, making it well-suited for
    portable applications.
    The MIC2183 is available in 16-pin SOP and QSOP packaging options with a junction temperature range from -40В°C to
    +125В°C. Input voltage range: 2.9V to 14V
    >90% efficiency
    Oscillator frequency of 400kHz ...



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




Current Limit / Short Circuit ProtectionTrue
Duty Cycle Max1 %
Enable PinTrue
External Clock SyncTrue
Internal Voltage BiasTrue
Iq Off0.5 µA
Maximum Input Voltage14 V
Maximum Output Voltage12 V
Minimum Input Voltage2.9 V
Minimum Output Voltage1.3 V
Operating Frequency200K / 400K Hz
Operating Supply Current1.7 mA
Operating Temperature Range-40 to +125 °C
Soft StartTrue
Supported Outputs1
Supported TopologiesSync. Buck
Typical ToleranceВ±1 %

Eco Plan


Moldel Line

Series: MIC2183 (4)

Manufacturer's Classification

  • Power Management > PWM Controllers > Buck Products
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