4.55 V threshold, 120 ms timeout — the 5 V rail watchdog
It asserts a low reset output when the supply drops below 4.55 V and holds reset low for a minimum of 120 ms after the rail recovers.
SOT-23-5 footprint, active lifecycle
Housed in a 5-pin SOT-23-5 (SC-74A) package, the part is surface-mount and shares the same land pattern as the standard SOT-23-5. The active lifecycle status means TI is still manufacturing this device — no last-time-buy risk for ongoing production runs.
Temperature grade and supply monitoring
The single-voltage monitor keeps the BOM simple: one IC, no external timing capacitor, no pull-up resistor.
