2.63V threshold and 120ms timeout — fit for 3.3V rail supervision
The TPS3831L30DQNT is a single-channel voltage supervisor from Texas Instruments with a fixed threshold of 2.63V. That threshold sits at roughly 80% of a nominal 3.3V rail — early enough to trigger a clean reset before the downstream logic enters an undefined state, but not so high that normal ripple causes false trips.
The 4-X2SON (1x1) package is a current, small-footprint option — no risk of package obsolescence.
Package and temperature — board-level fit for industrial environments
The TPS3831L30DQNT comes in a 4-X2SON (1x1) package.
