3.08V threshold and the 3.3V rail
The MAX16036LLB31+ monitors a single voltage rail with a 3.08V threshold — this sits just below the nominal 3.3V supply, so it catches a brownout before the downstream logic enters an undefined state. The 140ms minimum reset timeout holds the system in reset long enough for the rail to stabilise after power-up, preventing the processor from starting with a marginal supply.
Active-low push-pull output
The reset output is active low with a push-pull (totem pole) stage — it drives the reset pin directly without an external pull-up resistor. The output stays low during the 140ms timeout after the monitored voltage rises above 3.08V, then releases high. If the rail dips below threshold again, the output pulls low immediately and the timeout restarts.
10-uDFN package and board integration
Housed in a 10-WFDFN package (2x2mm body, 0.5mm pitch), the MAX16036LLB31+ mounts on the PCB with the exposed pad soldered to the ground plane for thermal relief. The 10-uDFN (2x2) supplier device package footprint is common enough that layout libraries are readily available.