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Datasheet Microchip MIC2169AYMM-TR

Part NumberMIC2169AYMM-TR

The MIC2169A is a high-efficiency, simple to use 500kHz PWM synchronous buck control IC housed in a small MSOP-10 package


  • Download » Datasheet PDF, 1.2 Mb, Revision: 11-05-2015
    MIC2169A - 500kHz PWM Synchronous Buck Control IC
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    MIC2169A Micrel MIC2169A
    500kHz PWM Synchronous Buck Control IC General Description Features The MIC2169A is a high-efficiency, simple to use 500kHz
    PWM synchronous buck control IC housed in a small MSOP10 package. The MIC2169A allows compact DC/DC solutions
    with a minimal external component count and cost.
    The MIC2169A operates from a 3V to 14.5V input, without
    the need of any additional bias voltage. The output voltage
    can be precisely regulated down to 0.8V. The adaptive all
    N‑Channel MOSFET drive scheme allows efficiencies over
    95% across a wide load range.
    The MIC2169A senses current across the high-side NChannel MOSFET, eliminating the need for an expensive
    and lossy current-sense resistor. Current limit accuracy is
    maintained by a positive temperature coefficient that tracks
    the increasing RDS(ON) of the external MOSFET. Further cost
    and space are saved by the internal in-rush-current limiting
    digital soft-start.
    The MIC2169A is available in a 10-pin MSOP package, with
    a wide junction operating range of –40°C to +125°C.
    All support documentation can be found on Micrel’s web site
    at 3V to 14.5V input voltage range
    Adjustable output voltage down to 0.8V
    Up to 95% efficiency
    500kHz PWM operation
    Adjustable current limit senses high-side N-Channel ...



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




Current Limit / Short Circuit ProtectionTrue
Duty Cycle Max0.92 %
Enable PinTrue
Internal Voltage BiasTrue
Iq Off50 µA
Maximum Input Voltage14.5 V
Minimum Input Voltage3 V
Minimum Output Voltage0.8 V
Operating Frequency500K Hz
Operating Supply Current1.5 mA
Operating Temperature Range-40 to +125 °C
Soft StartTrue
Supported Outputs1
Supported TopologiesSync. Buck
Typical ToleranceВ±1 %

Eco Plan


Moldel Line

Series: MIC2169A (2)

Manufacturer's Classification

  • Power Management > PWM Controllers > Buck Products

Other Names:


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