Reset supervisor in a SOT-23-5 — what the 2.93V threshold means for your rail
The MAX6316LUK29AX+T is a single-channel voltage supervisor from Analog Devices, monitoring one supply rail and asserting a reset signal when the voltage drops below 2.93V. The active-low, push-pull output drives directly into the reset pin of an MCU or processor without an external pull-up — the totem-pole stage sources and sinks current, keeping the reset line clean during a brownout event. Housed in a 5-pin SOT-23-5 (SC-74A), this part occupies minimal board area — roughly 3.0 × 3.0 mm footprint — and suits space-constrained designs where a discrete reset IC replaces a resistor-capacitor network. The 1ms minimum reset timeout ensures the downstream device stays in reset long enough for the supply to stabilise after a fault, without delaying the system start-up unnecessarily.
Temperature range and board-fit checklist
The 2.93V threshold is factory-trimmed — no external resistor divider sets the trip point, so the accuracy is consistent across temperature and lot. The push-pull output eliminates the need for a pull-up resistor, saving one component per rail. Surface-mount assembly with a standard SOT-23-5 footprint; the part is available in tape-and-reel (TR) or cut-tape (CT) for prototype or production volumes.