What the 3.08V threshold means for your system
The MAX6361LUT31 is a single-channel battery backup circuit that monitors a 3.08V threshold — this is the voltage at which it asserts a reset to the processor or memory when the supply dips below that level. For a 3.3V rail, the 3.08V threshold sits about 220 mV below nominal, giving the system a window to write critical data to non-volatile memory before the supply collapses entirely. The 150ms minimum reset timeout holds the processor in reset long enough for the supply to stabilize after a brownout or power-up event.
Temperature grade and deployment context
The SOT-23-6 package keeps the footprint small for space-constrained designs.