Fixed 3.3V rail from a 2.5V to 5.5V input
The TPS62007DGSRG4 is a synchronous step-down (buck) converter from Texas Instruments that delivers a fixed 3.3V output at up to 600mA. Synchronous rectification is built in — no external Schottky diode needed, and light-load efficiency stays respectable.
It comes in a 10-VSSOP package (the same footprint as 10-TFSOP / 10-MSOP, 3.00 mm wide). That is a small, fine-pitch part — you will want a hot-air station or a decent soldering iron with a fine tip for rework. Fine for outdoor telecom cabinets, factory floor gear, or anything that lives inside a building but sees a cold warehouse or a hot panel.
