2.25 MHz buck for tight board spaces
The Texas Instruments TPS62261DRVR is a synchronous step-down (buck) regulator delivering a fixed 1.8 V output at up to 600 mA from a 2 V to 6 V input rail. The synchronous rectifier keeps efficiency respectable at light loads — a practical advantage for battery-powered or always-on subsystems.
Input range and load budget
The 600 mA continuous output is the ceiling for the rail — derate for ambient temperature and the exposed-pad thermal resistance. At 2.25 MHz the inductor value typically lands in the 2.2 µH to 4.7 µH range, keeping the BOM compact.