Yes, SWOUT pin can be floating.
MAX14720
Recommended for New Designs
The MAX14720/MAX14750 are compact power-management solutions for space-constrained, battery-powered applications where size and efficiency are critical...
Datasheet
MAX14720 on Analog.com
MAX14750
Production
The MAX14720/MAX14750 are compact power-management solutions for space-constrained, battery-powered applications where size and efficiency are critical...
Datasheet
MAX14750 on Analog.com