2 A, fixed 1.8 V rail – sizing the output
This is a fixed 1.8 V output buck regulator rated for 2 A continuous output current. The 2.2 MHz switching frequency lets you use a small inductor — typically 1 µH to 2.2 µH — which keeps the PCB footprint tight. The 2.4 V to 5.5 V input range covers common 3.3 V and 5 V rails, so it's a natural fit for powering a 1.8 V core or I/O supply from a system bus.
Package and temperature – board-level fit
The 6-VSON-HR package measures 1.5 mm x 1.5 mm with an exposed thermal pad.