Wide-input buck for industrial and automotive rails
The 300 kHz switching frequency keeps the inductor small, and the -40°C to 125°C junction temperature rating means it lives in engine bays, outdoor telecom cabinets, and factory-floor control panels without thermal derating drama.
What the ratings mean for your BOM
500 mA output is the hard ceiling. The synchronous rectifier helps efficiency at light loads, so the 500 mA rating is usable across most of the load range.
Package and mounting — plan for reflow
The 10-TDFN (3x2 mm) exposed-pad package needs reflow or a hot-air station. This is not a hand-solder field swap part — the thermal pad under the package is the main heat path, and getting it right without a reflow profile is unreliable. Plan for a pick-and-place pass and a reflow oven. The exposed pad must be soldered to a copper land on the PCB with thermal vias to the ground plane. Without that, the 125°C junction rating is academic — the part thermally limits well below the spec.
Lifecycle and sourcing
It carries ROHS3 compliance, so it passes into European and RoHS-restricted markets without exemption paperwork.