Can CCMP25 VDDIO be set to 1.8V?

Hello,

CCMP25 SoM has VDDIO regularly set to 3.3V. We want to use the module as replacement in a system with 1.8V VDDIO. My question is if on-module usage of VDDIO (STPMIC25 BUCK4 output) will be compatible with this setting?

Best regards
Frank