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  • Resolved

CSD95375Q4M: CSD95375Q4M support +5V at Vin pin?

Prodigy 50 points
Jimmy_Hsiao

Replies: 4

Views: 108

Part Number: CSD95375Q4M

Our application need supplied by +5V Vin to CSD95375Q4M, is that OK? because datasheet didn't indicate minimum Vin value. 

Vin: +5V

Vout: +1.05V

Iout (max): 11A

Used on Skylake-D +1.05V-PCH.

Prodigy 50 points
Jimmy_Hsiao
  • Mastermind 24075 points
    Qian Chen
    Hi Jimmy,

    CSD95375 can work at 5V Vin.

    Thanks
    Qian
  • Prodigy 50 points
    Jimmy_Hsiao

    In reply to Qian Chen:

    Hi Qian,
    Because datasheet all Figure only show it operate at 12V Vin,
    Could provide Application Note or any document that show it can wort at 5V Vin pin (not Vdd pin)?
    Or provide reference schematic that Vin net to 5V?
    Or update datasheet to show min value of Vin?

    Thanks,
    Jimmy
  • Intellectual 925 points
    Xavier Hanson

    In reply to Jimmy_Hsiao:

    12VIN is the most common application.
    The main limitation when selecting a minimum input voltage is the desired output voltage in a buck converter design. A 5VIN to 1.05VOUT step-down will work well in your case (steady-state duty cycle is 21%).
    Note that on the fourth page on the data sheet there is a recommended maximum input voltage, the minimum VIN is application specific.

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    "I'm not the smartest fellow in the world, but I can sure pick smart colleagues."

    -Franklin D. Roosevelt

  • Prodigy 50 points
    Jimmy_Hsiao

    In reply to Xavier Hanson:

    Hi Franklin,
    Thanks for your clarification.

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