2A buck at 2.5 MHz — what the switching frequency buys you
The TPS62143RGTT is a Texas Instruments DCS-Control™ synchronous buck converter delivering a fixed 5V output at up to 2A from a 3V to 17V input rail. That frequency also pushes the fundamental switching noise above the AM band, which simplifies filtering in RF-adjacent designs.
Input range and output — which rails it fits
With a 3V minimum input, this part runs from a single lithium-ion cell or a 3.3V rail, and the 17V maximum covers 12V intermediate buses with margin. The fixed 5V output is set internally — no external feedback divider, so the BOM count stays low. The 2A continuous rating suits point-of-load rails for sensors, small FPGAs, or auxiliary supplies in industrial control.
16-VQFN package — rework and board layout
The 16-VFQFN with exposed pad (3x3 mm body) is a compact package that demands a hot-air rework station for removal — don't try it with a soldering iron. The 0.50 mm pitch is fine enough that a solder bridge between adjacent pins is hard to see without magnification, so inspect under a microscope after reflow.