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LM25118-Q1: boost only

Part Number: LM25118-Q1

Hi~

In LM25118-Q1 datasheet, supportable topology is just buck or buck-boost topology.

But when output is always higher than input voltage, it always works as boost, so it looks no problem? am I right?

And then can I use just boost only mode by removing hi-side FET(HO FET)?

If possible, just open HO pin is possible? (VIN connect to HS directly by removing hiside FET.

Thanks for any advice.