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TPS61088-Q1: TPS61088-Q1 Thermal Consideration

Part Number: TPS61088-Q1

I am trying to design TPS61088-Q1 with following design inputs

Vinmin=3.2V Vinnom=3.3V Vinmax=3.4V  Vout=5V Iout=3A Ta=100C 

Due to Ta=100C switching frequency is coming 195.367 KHZ and Tj=129.646C

Is this design OK ? I am attaching link for WEBENCH Design file .Can you please check and verify design 

Also want to know about is there any cooling mechanism for this IC . In datasheet I gone through thermal consideration info. How much copper thickness need to consider for my design?

 

webench.ti.com/.../27