Function and key features
The MAX5903LBEUT-T is a single-channel hot swap controller from Maxim Integrated's Simple Swapper™ series, designed to protect a downstream load during board insertion into a live backplane. It integrates both internal switches and draws 1 mA supply current, keeping the quiescent load off the bus. Programmable protection features include circuit breaker, current limit, latched fault, thermal limit, and undervoltage lockout (UVLO) — all configurable with external resistors, so the trip thresholds match the load's inrush profile.
Supply voltage and package
Supply voltage range is 9V to 72V. The SOT-23-6 package (supplier device package SOT-23-6) keeps the footprint small for dense line cards.
RoHS and compliance
The MAX5903LBEUT-T is RoHS non-compliant.