Is this inductor allright for use in an SMPS?

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treez

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Please can you help us to calculate what core losses we can expect in the Wuerth 7447709330 inductor? (we are using it in a 200khz buck converter)

Inductor datasheet (7447709330)
https://katalog.we-online.com/pbs/datasheet/7447709330.pdf

The buck converter is in continuous conduction mode.
The peak inductor current is 3.8 Amps.
The pedestal inductor current is 3.25Amps.
(so as you may see, the current is triangular and between 3.25 Amps and 3.8 Amps)
Please can you help us to evaluate what the core losses will be?

(We are of course, able to calculate the winding losses as the datasheet tells us the winding resistance figure)

Also, please can you confirm that the 7447709330 inductor is allowed to be used in such high frequency buck converters?
 

How do you want to derive the core losses from a datasheet that doesn't mention it at all?

Wuerth has a component selector tool with loss data. According to it the core losses are effectively neglectable under the said conditions, 450 mW copper versus 22 mW core losses.
 
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