I had searched for an AppNote or more information too, but didn't found anything. So I decided to layout the PCB in an way that I had both options selectable with solder jumpers and different part assembly. I used a DFLS130L and a TYS6028100M-10 and it worked, but is not fully tested against temperature range and EMC yet. There are propably cheaper and/or more space saving parts around, the inductor needs pretty much area. The S7 is a R7FS7G27H3A01CFC#AA0, a QFP176.
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