2.63V threshold — monitoring a 3.3V rail
The TPS3823-30DBVR: That threshold is set for a 3.3V rail — the reset triggers at roughly 80% of nominal, catching brownouts before the processor logic glitches. The active-low, push-pull output drives the reset pin directly without an external pull-up resistor.
Package and footprint — SOT-23-5
Housed in a SOT-23-5 package, the TPS3823-30DBVR uses the standard 5-pin supervisor footprint common across TI's TPS382x family. Surface-mount assembly is straightforward for reflow profiles typical of lead-free solders.
The base product number is TPS3823, which covers multiple threshold options in the same SOT-23-5 footprint. The -30 suffix denotes the 2.63V threshold variant.