1.8V rail monitor for industrial and automotive power sequencing
The TPS3702AX18DDCT is a single-channel voltage detector from Texas Instruments, monitoring a 1.8V rail and asserting an active-low reset when the supply drops below that threshold. Its open-drain output lets you wire-OR multiple detectors or pull up to a different logic voltage — handy when the monitored rail is 1.8V but the supervisor logic runs at 3.3V.
Open-drain output and reset timing for system-level integration
Because it monitors a single voltage, this part is a direct fit for a dedicated 1.8V core or I/O rail where you want a clean reset signal without multiplexing multiple thresholds into one pin.
The SOT-23-6 thin package is a common footprint; multiple distributors carry cut tape and reel options for both prototyping and volume.