The MAX6838XSD2+T from Maxim Integrated is a simple reset/power-on reset IC that monitors a single voltage rail and asserts a reset signal when the supply drops below a user-selectable threshold. The output is active-low push-pull, which means it pulls the reset line low during a fault and drives it high again once the supply is stable and the 20ms minimum timeout expires.
Temperature range and operating environment
That spans factory-floor enclosures, outdoor telecom cabinets, and engine-bay-adjacent electronics where the board sees thermal cycling but not the full military range. The SC-70-4 package is small enough to fit on a cramped PCB alongside an MCU or FPGA that needs a clean reset signal at power-up.