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Original question:

LMG3410R070: maximum operating frequency?

LMG3410R070: bypass internal buck-boost regulator?

Brian Machesney
Prodigy 175 points
Part Number: LMG3410R070

Can I disable the internal buck-boost VNEG converter? My application does not require the gate of the GaN device to be pulled below VSS.

  • 0
    TI__Genius 16390 points

    Hello Brian,

    Since LMG3410R070 features a direct drive architecture, the -14V is used to directly turn on/off the GaN. Thus, the VNEG buck-boost converter cannot be disabled. Otherwise, it will trigger the UVLO protection. 

    May I know how are you planning to turn on/off the GaN FET if you are not getting the negative voltage generated from the internal converter?

    Regards,