Two-rail supervisor in a SOT-23-5
The MAX6718UKSHD3+T is a multi-voltage supervisor from Analog Devices that monitors two independent supply rails. It asserts a reset output when either monitored voltage drops below its threshold — 1.313 V on one channel, 2.925 V on the other. The push-pull, totem-pole output stays active low until both rails recover and the 140 ms minimum reset timeout expires.
The 1.313 V threshold monitors low-voltage cores, while the 2.925 V threshold suits I/O supplies. The 140 ms minimum reset timeout rides through supply glitches from load transients.