3 MHz switching — inductor size vs ripple trade-off
The TPS622317DRYR is a fixed-output (2.9V) synchronous buck converter from Texas Instruments, switching at 3 MHz. For a 500 mA rail powering a sensor or MCU core, the ripple is manageable with a 10 µF ceramic output cap; just don't expect the same noise floor as a lower-frequency regulator.
Input range 2.05V to 6V — single Li-ion or 3.3V rail
The input voltage spans 2.05V min to 6V max, which covers a single-cell Li-ion (3.0-4.2V) or a regulated 3.3V or 5V bus. The 2.05V minimum means it can run deep into battery discharge without dropping out — useful for portable gear. The fixed 2.9V output is not adjustable, so confirm that voltage matches your load; it's a common rail for low-voltage logic or RF front-ends.
ROHS3 compliant.