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LMQ644A2-Q1: Recommended Fsw

Austin Do
Expert 3255 points
Part Number: LMQ644A2-Q1

Tool/software:

Hello team,

Is there thermal performance data or junction temp across switching frequency?

Also, the customer wants to choose the best fsw in order to minimize power dissipation.

Vin : 16V

Vout: 12V, 4-phase

Best Regards,

Austin

  • 0
    TI__Genius 9460 points

    Hi Austin,

    Lower switching frequencies generally lead to lower power dissipation and therefore lower junction temp. 

    Unfortunately we do not have thermal data across sw freq but you can use our webench tool to estimate this - https://webench.ti.com/power-designer/

    Regards,

    Rahil