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Datasheet Microchip MIC4690


The MIC4690 SuperSwitcher™ is an easy-to-use, 500kHz step-down PWM voltage regulator


  • Download » Datasheet PDF, 282 Kb, Revision: 11-05-2015
    MIC4690 Data Sheet
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    MIC4690 Micrel MIC4690
    500kHz 1A SuperSwitcherв„ў Buck Regulator General Description Features The MIC4690 SuperSwitcherв„ў is an easy-to-use, 500kHz
    step-down PWM voltage regulator. The MIC4690 achieves
    over 1A of continuous output current over a wide input voltage
    range in an 8-lead SO (small outline) package.
    The high switching frequency of the MIC4690 allows the
    smallest surface-mount inductors and capacitors to be used.
    Internal compensation ensures fast transient response and a
    minimum amount of external components.
    The MIC4690 features a power SO-8 package with a special
    lead frame that allows over 1A of continuous current. The
    MIC4690, housed in an SO-8, can replace larger TO-220 and
    TO-263 packages in many applications.
    The MIC4690 allows for a high degree of safety. It has a wide
    input voltage range of 4V to 34V, allowing for it to be used in
    applications where input voltage transients may be present.
    Built-in safety features include over-current protection, frequency foldback protection, and thermal shutdown.
    The MIC4690 is available in an 8-lead SO package with a
    junction temperature range of –40°C to +125°C. SO-8 package with over 1A output current
    Fixed 500kHz operation
    Wide 4V to 34Vinput voltage range
    Output voltage adjustable to 1.23V
    All surface mount solution ...



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




# of Outputs11
Automotive RatedNoNo
Duty Cycle Max, %0.930.93
Input Voltage Range, V4 - 344 - 34
Light Load Efficiency ModeNoNo
Operating Temperature Range, °C-40 to +125-40 to +125
Output Current, mA) Max13001300
Output Voltage Range, V1.231.23
Quiescent Current, mA) type77
Regulator TypeStep Down (Buck)Step Down (Buck)
SHUTDOWN Current, µA5050
Switching Frequency, kHz500500
Synchronous RectifierNoNo
Vfb, V1.231.23

Eco Plan


Moldel Line

Series: MIC4690 (2)

Manufacturer's Classification

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

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