1.77 V threshold for 1.8 V rail supervision
The TPS3808G19DBVR is a TI Simple Reset/Power-On Reset supervisor with a 1.77 V threshold — the right trip point for monitoring a 1.8 V core supply on an MCU or FPGA. If that rail dips below 1.77 V, the active-low open-drain output pulls low and holds the system in reset until the supply recovers and the adjustable timeout expires.
Temp range and package for field fit
Rated for -40 to 125 °C junction temperature, this part handles under-hood automotive, industrial oven, or outdoor telecom enclosures without derating. The SOT-23-6 package is a common footprint — easy to hand-solder or rework on site with a standard iron and tweezers.