Heat sink for buck regulator Ic

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Joined Oct 3, 2022
I am designing a buck converter using Sic466 for an input range 10 - 60 and an output of 12V 10A. The ic has integrated mosfet and overall power dissipation is 3W. I am searching for a solution for the heat sink the package of the ic is 5mm* 5* .75. After searching the internet I couldn't find a suitable heat sink for this. Kindly give me some suggestion how can I add a heat sink. The ambient temperature is 55deg C. Rjc is 2 c/w and Rja is 12c/w