MP1654 power dissipation formula

DC-DC Power Converters
1

I would like to know MP1654 power dissipation formula to calculate power loss.

can you share with me ?

2

Hi Ray,

To estimate power loss it’s good to break it down into its main components. In decreasing order of significance (typically):
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We simply add up all these losses to find the total power dissipation, which we can use to estimate overall efficiency.

You won’t find the Qgs2/Qgd/Ig terms in any datasheets though. This can be roughly approximated by using the efficiency plots in the datasheets and accounting for all sources of power dissipation to back-solve for this final term. It’s only an approximation, but it works well enough.

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