Fixed 1.5 V rail for low-power loads
The TPS62201DBVT is a fixed 1.5 V output buck converter rated for 300 mA continuous — a common rail for low-voltage digital cores, sensor supplies, or I/O buffers that need a clean 1.5 V from a 2.5 V to 6 V input.
Input voltage window and output limits
The input range bottoms at 2.5 V and tops at 6 V — that covers a single-cell Li-ion (3.0–4.2 V) or a regulated 3.3 V/5 V rail, but not a 12 V bus or automotive battery line. The fixed 1.5 V output is non-adjustable, so confirm your load voltage before layout; if you need a different output, look at the adjustable sibling TPS62200. Synchronous rectification improves efficiency at light loads by replacing the freewheeling diode with a low-side FET — expect better than 85 % efficiency across most of the 300 mA range, though the datasheet efficiency curves are the final arbiter for your specific Vin/Vout combo.