Three-rail voltage monitoring in a SOT-23-6 footprint
The MAX6724UTSDD3-T is a three-channel multi-voltage supervisor from Analog Devices that monitors up to three supply rails and asserts a single active-low reset output when any monitored voltage falls below its threshold. The voltage thresholds are 0.788 V, 2.925 V, and an adjustable third channel — the two fixed thresholds cover common core and I/O rails while the adjustable channel lets you set a custom trip point for a third supply. The reset output is push-pull, totem-pole, so it drives the downstream reset line directly without an external pull-up resistor — a detail that saves a component and a PCB trace in tight layouts.
Reset timing and temperature range
The reset timeout is 140 ms minimum — long enough to let all three monitored rails settle after power-up before the processor comes out of reset, avoiding brown-out or mid-boot glitches.
Package fit and compliance note
Housed in a 6-pin SOT-23 package (SOT-23-6), the part takes minimal board area and suits space-constrained designs where a supervisor must sit near the monitored loads. The part is RoHS non-compliant per the manufacturer's listing — confirm your assembly line's material declaration requirements before specifying this order code in a new BOM.