The Maxim Integrated MAX767REAP is a step-down (buck) power controller designed for DC-DC conversion in systems that need a regulated lower voltage from a higher input rail. The controller handles the PWM and feedback loop; you add the external MOSFET, inductor, and capacitors to complete the converter.
The RoHS compliance status is non-compliant, which is a hard constraint for any design that must meet EU RoHS or similar lead-free assembly requirements. If your BOM requires lead-free solder, this part is not a fit unless you have an exemption or are working in a military/aerospace program that permits tin-lead.
Packaging and handling note
This part is — loose parts in a bag or tube, not tape-and-reel. That is fine for prototype builds, repair stock, or low-volume production where you are hand-placing or using a small pick-and-place setup. For high-volume reflow assembly, you would typically order the tape-and-reel variant if one exists; check the full ordering options.