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TPS563202S: How to check thermal analysis for TPS563202S

Part Number: TPS563202S
Other Parts Discussed in Thread: TPS563202,

Hi,

I have selected TPS563202SDRLR as buck converter for my application (i.e., Vin = 4.8 to 9V , Vout = 3.3 V , Iout = 0.5A maximum).

This IC thermal resistance is 137 deg C/W . 

Tj = TA + (RthetaJA * Pd), here How to calculate the power dissipation? shall i take load current or leakage current?

How to do thermal analysis for this IC? (Pass/Fail)

Need to know, whether this IC suits to my application or not!!

Looking forward your response!

Thanks,

Murali