LM3544 Datasheet | National Semiconductor

LM3544 Quad Port USB Power Distribution Switch and Over-Current Protection April 2005 Quad Port USB Power Distribution Switch and Over-Current Protection General Description The LM3544 is a quad high-side power switch that is an excellent choice for use in Root, Self-Powered and BusPowered USB (Universal Serial Bus) Hubs. Independent port enables, flag signals to alert USB controllers of error conditions, controlled start-up in hot-plug events, and short circuit protection all satisfy USB requirements. The LM3544 accepts input voltages between 2.7V and 5.5V. The Enable logic inputs, available in active-high and activelow versions, can be powered off any voltage in the 2.7V to...