nprofile1qyt8wumn8ghj7un9d3shjtnyd968gmewwp6kytcqyp00vknlslh2h5qs0qc7mk4m9ytk2xan6cwy7lz58mhmkse490k6k7aftwc (nprofile…ftwc) nprofile1qyt8wumn8ghj7un9d3shjtnyd968gmewwp6kytcqyre666t685f4yd2xldp4lexd77y5es3amefr50k76sy7aq7fsa56jvsaax0 (nprofile…aax0) I think the main limitation using these for something like an SMPS would be that they are coreless and large, and as such they would be a total EMI nightmare if you fed them straight from a FET switching with nice, crisp edges. You could maybe mitigate that and increase inductance with one fo these ferrite shielding sheets you can get for cheap for wireless charger coils.
Besides that, when pushing power, in PCB planar inductors the DC resistance quickly gets annoying.