The Maxim Integrated MAX44269EWL+T is a dual general-purpose comparator with open-drain outputs, supplied in a 9-bump WLP measuring 1.29 x 1.29 mm. It operates from a single supply between 1.8 V and 5.5 V, drawing a maximum quiescent current of 1 µA. Built-in 6 mV hysteresis eliminates output oscillation near the trip point. This part is suited for battery-powered threshold detection, zero-crossing detectors, and level-shifting circuits where board space is at a premium and power budget is tight.
1 µA quiescent current — the spec that drives the BOM decision
At 1 µA max quiescent current, this comparator is designed for always-on or duty-cycled portable and IoT applications. The open-drain outputs allow wired-OR configurations and level translation to a higher pull-up voltage, which is useful when the comparator output must drive a logic input at a different supply rail.
Package and footprint — what to expect for assembly
The 9-WLP (Wafer-Level Package) is a 1.29 x 1.29 mm array of solder bumps. It is a surface-mount device intended for direct PCB attach. The small footprint means the board layout must accommodate fine-pitch routing and a solder-mask-defined pad pattern.