2.63V threshold, 120ms timeout — active-low push-pull supervisor
The TPS3831L30DQNR is a single-channel voltage supervisor from Texas Instruments, monitoring a 2.63V threshold rail with an active-low, push-pull output. The 120ms minimum reset timeout ensures the downstream processor sees a full reset pulse before startup, covering the typical 100ms requirement with margin. This is a Simple Reset/Power-On Reset type — no adjustable delay or manual reset input.
Industrial temp grade and 1mm² package
Compared to the TLV803EA29VDBZR (open-drain output, 130ms timeout, -40°C to 125°C), the TPS3831L30DQNR's push-pull output saves the pull-up resistor, but the TLV803 offers a wider temperature range and a lower 2.93V threshold option. The TPS3831L30DQNR's 2.63V threshold is the right fit for a 2.7V or 2.8V rail — confirm your supply tolerance against the 2.63V min before committing.