TPS3808G33QDBVRQ1

The TPS3808G33QDBVRQ1 is an AEC-Q100 automotive voltage supervisor in SOT-23-6 that monitors 0.4 V to 5 V system rails and asserts an open-drain RESET when the sense voltage falls below its fixed 3.3 V threshold or the manual reset pin goes low. A 0.5 percent typical threshold accuracy keeps reset timing tight across temperature, preventing nuisance resets that cause field returns, while 2.4 uA typical quiescent current suits battery-backed and always-on automotive modules. The reset delay is programmable from 1.25 ms to 10 s with a single CT capacitor (20 ms with CT open, 300 ms with a resistor to VDD), and separate VDD and sense pins let you supervise a rail other than the supply. It is fully specified from -40C to +125C and is functional safety-capable. Selection advice: the G33 code fixes the threshold at 3.3 V; if you supervise a 1.8 V, 2.5 V or 5 V rail, choose the matching fixed-threshold G-code or the G01 adjustable version with external resistors rather than misapplying the 3.3 V part. Parameters verified against Texas Instruments documentation.