Reset supervisor for 1.8V rails
The MAX6386LT17D3+T is a simple reset/power-on reset IC monitoring a single voltage rail with a 1.67V threshold — a tight fit for 1.8V supply supervision where the reset must assert before the rail dips below the logic's minimum operating voltage. The active-low, open-drain output pulls low when the monitored voltage drops below threshold and holds the reset state for a minimum 140ms after the rail recovers, giving the downstream processor time to stabilize its oscillator and power-up sequence.
6-uDFN package and rework profile
Surface-mount only; the 0.5mm pitch leads are fine enough that the solder mask between pads is narrow — a stencil aperture reduction of 10% on the pad width helps avoid bridging during reflow.