Active lifecycle — still a current-production part
The MAX6831YGUT: One caveat: the part is RoHS non-compliant, meaning it uses a lead-bearing solder finish or material exemption.
Two-rail monitoring with independent thresholds
The reset output is active-low, open-drain — it pulls low when either monitored voltage falls below its threshold, and releases after a 140 ms minimum timeout once both rails are back in tolerance. Open-drain lets you wire-OR this output with other supervisors or a manual-reset button on a shared pull-up.
SOT-23-6 footprint and board-fit
Two-layer boards break it out cleanly; the small body saves board area in densely populated power-management sections. Surface-mount only; the package is self-aligning during reflow and requires no underfill for normal thermal cycling. Standard MSL level applies — bake only if the bag humidity indicator card shows exposure.