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TPS2663: Temperature difference in package (VQFN vs HTSSOP)

Part Number: TPS2663

We're using the evaluation board with the VQFN package for first tests. 

Due to long lead times the VQFN is not available for first development samples so we're using the HTSSOP package instead.

-What would the temperature difference be within the packages (i.e. HTSSOP = 8% then the VQFN)?
-Besides the reference design in datasheet any tips on imrpoving the heat management of the IC?

  • Hi Luc,

    Welcome to E2E!

    The temperature difference would be very low. Considering the power loss of 1W at rated current 6A and same PCB thermal resistance, we would see a temperature rise difference of (3.6C/W-2.8C/W)*1W = 0.8C. that is HTSSOP causes 0.8C higher temperature rise than VQFN

    Best Regards, Rakesh