2.925V threshold — the trip point that matters
The MAX6868UK29D3S: This threshold is factory-trimmed, so no external resistor divider sets the trip — the part monitors a 3.0V or 3.3V rail and holds the reset output active until the supply recovers and the 150ms minimum timeout expires. The reset output is Active High with a Push-Pull (Totem Pole) topology, meaning it drives the reset line high when the monitored voltage is below threshold. No external pull-up resistor is needed — the output sources and sinks current directly, which simplifies the connection to a microcontroller's reset pin that expects a high-true signal.
The SOT-23-5 (SC-74A) package occupies minimal board area and routes easily on a two-layer PCB; the pinout is standard for this supervisor family, so a layout swap to a different threshold variant requires only a BOM change, not a board spin.
