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Datasheet Microchip MIC2169BYMME-TR

Part NumberMIC2169BYMME-TR

The MIC2169B is a high-efficiency, simple to use 500kHz PWM synchronous buck control IC housed in a small MSOP-10 ePad package


  • Download » Datasheet PDF, 533 Kb, Revision: 11-05-2015
    MIC2169B - 500kHz PWM Synchronous Buck Control IC
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    500kHz PWM Synchronous Buck
    Control IC General Description Features The MIC2169B is a high-efficiency, simple to use 500kHz
    PWM synchronous buck control IC housed in small
    MSOP-10 and MSOP-10 ePad packages. The MIC2169B
    allows compact DC/DC solutions with a minimal external
    component count and cost. The device features highoutput driver capability to drive loads up to 30A.
    The MIC2169B 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 within the smallest possible
    printed circuit board space area.
    The MIC2169B 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 currentlimiting digital soft-start. The MIC2169B is identical to the
    MIC2169A with the exception that the MIC2169B supports
    pre-bias loads and has a lower impedance gate-drive
    circuit. Internal pre-bias circuit prevents output voltage
    drooping and excessive reverse inductor current when
    powering up with a pre-bias voltage at the output. ...



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: MIC2169B (4)

Manufacturer's Classification

  • Power Management > PWM Controllers > Buck Products

Other Names:


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