• LTC3855 switching frequency

    Hello


    Our customer asks below about switching frequency of LTC3855.
    Please let me know your advice.

    Question
    When he measures TG2 of LTC3855 at 500KHz switching frequenct setting (FREQ=120Kohm) using his circuit board,
    its frequency is 250Khz. Then the…

  • LTC3855 5V in and 5V out

    Can LTC3855 realize 5V in 5V out?

    We have one situation, which is 5V in, or 12V in. No matter which one, we hope that the output is 5V.

    If 12V in, LTC3855 can buck the 12V into 5V, that is no problem.

    Here is the queation, if 5V in, Can LTC3855 shut down…

  • RE: LTC3892-1 Eval Board

    Hello Hiro-San,

    I do not know the reason why R17/R18 differ from R19/20 in the eval-Kit. As you stated other documents (LTC3855) show here two identical values (LTC3833 as well).

    My rough guess would be that this setup perform slightly better for the…

  • RE: The meanings of some parameters of chips and the interleaving ability

    Hello,

    The LTC3855 is a current mode controller. As with other current mode controllers the output voltage of the LTC3855 is limited by the maximum rating of the SENSE+/- pins with respect to ground. These pins sense the voltage across the sense resistor…

  • DCR Sensing

    Hi,

    I would like to know is there any difference on the placement of the Inductor DCR sensing.

    On the datasheet of LTC3784 the DCR sensing the capacitor and resistor is parallel, whereas on the application note 136 using LTC3855 the application note…

  • TAGS LIST: Power by Linear

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