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Tool/software:
I selected a LP38692MP-3.3/NOPB for better thermal performance compared to AP7361C-33E-13.
Both are SOT-223 package, difference is Rthja.
My query is how Rthja was vary for same package.
LM3940IMPX-3.3/NOPB & TLV1117LV33DCYR also SOT-223 package, here also same condition (Rthja was varry).
How Rthja was vary for same package, kindly give the explanation.
Hello,
Please see Semiconductor and IC Package Thermal Metrics (Rev. D) (ti.com) to learn more about how TI simulated thermal conditions, such as the Rthja parameter, which we include in our datasheets.
Best,
Hannah