Two-rail supervisor in a five-pin SOT-23
The MAX6718UKSHD3-T is a multi-voltage supervisor from Maxim Integrated that monitors two system rails and asserts a single active-low reset when either voltage drops below its threshold. It tracks a 1.313V threshold on one channel and a 2.925V threshold on the other, covering common core and I/O supply pairs in mixed-voltage designs. The reset output is push-pull, totem pole — no external pull-up resistor needed — and stays asserted for a minimum of 140 ms after all rails return above threshold, giving the downstream processor time to stabilise before release.
Housed in a 5-pin SOT-23 package (SC-74A, SOT-753), the part occupies minimal board area and suits space-constrained designs like portable instruments or sensor nodes. The supplier device package is SOT-23-5; the pinout is standard for this footprint, with pin 1 clearly marked by a bevel on the top moulding. The part is RoHS non-compliant per the manufacturer's listing — check your assembly's exemption requirements if lead-free processing is mandatory.