The supply voltage spans 1.8V to 3.3V, letting it run off a 1.8V core rail or a 3.3V I/O rail without a separate regulator or level translator.
Standby power-down and package fit
The 4-SMD no-lead exposed pad package (7.00 mm x 5.00 mm, 0.90 mm seated height) has a thermal pad underneath that should be soldered to a ground plane for heat sinking and mechanical stability.
