The MAX823LEUK+T: It asserts a reset signal (active-low, push-pull output) when the monitored supply drops below the threshold and holds the output low for a minimum of 140 ms after the supply recovers — ensuring the downstream processor sees a clean restart. The SOT-23-5 package (SC-74A, SOT-753) suits space-constrained designs where a small footprint matters more than multiple voltage monitoring channels.
Temperature range and operating environment
The 4.63 V threshold is a standard supervisor trip point for 5 V rails, catching brownout conditions before the logic supply falls out of regulation.