The MAX815TCSA+: It monitors a single 3.03 V rail and asserts a push-pull, active-low reset for a minimum of 140 ms when the supply dips below threshold.
What the ratings mean for the BOM
The 3.03 V threshold suits 3.3 V logic rails — the reset triggers before the downstream MCU or FPGA browns out, giving the 140 ms timeout window for the core to save state. Push-pull output means no external pull-up resistor needed on the reset line — the output drives high or low directly, saving one passives slot per channel.
ROHS3 compliant — no exemptions beyond the standard lead-free and halogen-free material declarations.