Dual-rail 600 mA buck in a 5×4 mm WSON
The fixed output voltages are 1.4 V and 2.8 V, set internally with no external divider needed. Switching at 2 MHz keeps the inductor and capacitor small, which matters when board area is tight.
Fixed-rail selection for dual-supply loads
Two independent 600 mA outputs mean this part can power a 1.4 V core rail and a 2.8 V I/O rail from a single Li-ion or 5 V bus. The synchronous rectifier improves efficiency at light load compared to a diode-based buck.
For volume or urgent BOM fill, the part is sourced to order against an RFQ; confirm current lead time and pricing at quote time.
Footprint and reflow notes for the 16-WSON
The datasheet recommends a 4.2 mm × 3.8 mm pad on the PCB with at least nine thermal vias to the ground plane. The 0.50 mm pitch and 0.30 mm pad width are standard for a WSON; no tombstoning risk if the stencil aperture is 1:1 with the pad.