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Datasheet Microchip MIC4684YM-TR

Part NumberMIC4684YM-TR

The MIC4684 is a high-efficiency 200kHz stepdown (buck) switching regulator


  • Download » Datasheet PDF, 495 Kb, Revision: 11-05-2015
    MIC4684 Data Sheet
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    MIC4684 Micrel, Inc. MIC4684
    2A High-Efficiency SuperSwitcherв„ў Buck Regulator General Description Features The MIC4684 is a high-efficiency 200kHz stepdown (buck)
    switching regulator. Power conversion efficiency of above
    85% is easily obtainable for a wide variety of applications.
    The MIC4684 achieves 2A of continuous current in an 8-lead
    SO (small outline) package at 60В°C ambient temperature.
    High efficiency is maintained over a wide output current range
    by utilizing a boost capacitor to increase the voltage available
    to saturate the internal power switch. As a result of this high
    efficiency, no external heat sink is required. The MIC4684,
    housed in an SO-8, can replace larger TO-220 and TO-263
    packages in many applications.
    The MIC4684 allows for a high degree of safety. It has a wide
    input voltage range of 4V to 30V (34V transient), allowing
    it to be used in applications where input voltage transients
    may be present. Built-in safety features include over-current
    protection, frequency-foldback short-circuit protection, and
    thermal shutdown.
    The MIC4684 is available in an 8-lead SO package with a
    junction temperature range of –40°C to +125°C. SO-8 package with 2A continuous output current
    Over 85% efficiency
    Fixed 200kHz PWM operation
    Wide 4V to 30V input voltage range ...



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




# of Outputs1
Automotive RatedNo
Duty Cycle Max0.94 %
Input Voltage Range4 - 30 V
Light Load Efficiency ModeNo
Operating Temperature Range-40 to +125 °C
Output Current2000 mA) Max
Output Voltage Range1.24 V
Quiescent Current6 mA) type
Regulator TypeStep Down (Buck)
SHUTDOWN Current5 µA
Switching Frequency200 kHz
Synchronous RectifierNo
Vfb1.24 V

Eco Plan


Moldel Line

Series: MIC4684 (2)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Down up to 36V

Other Names:


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