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PMP21309: PMP21309 for 700VDC Input, 24V 20A Output

Part Number: PMP21309
Other Parts Discussed in Thread: TIDA-010210

Hello,

I have an input voltage up to 700VDC and would like to convert it to 24V, 20A with peaks of 30A for a few ms. To do this, I would like to change the PMP21309 reference design to 700VDC. I have not found any alternatives for the LMG3410RWHT that can handle 700V. Can anyone give me some pointers?

Also, does anyone have any suggestions for the design of the powerstage?

With kind regards
Adam