LM3544 - Quad Port USB Power Distribution Switch and Over-Current Protection

Product Overview

National Semiconductor

Part number	LM3544
Manufacturer	National Semiconductor
File Size	769.04 KB
Description	Quad Port USB Power Distribution Switch and Over-Current Protection
Datasheet	LM3544 Datasheet
Additional preview pages of the LM3544 datasheet.

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.

of the LM3544 include current foldback to reduce power consumption in current overload conditions, thermal shutdown to prevent device failure caused by highcurrent overheating, and undervoltage lockout to keep switches from operating if the input voltage is below acceptable levels. Features n Compatible with USB1.1 and USB 2.0 n 90mΩ (typ. ) High-Side MOSFET Switch n 500mA Continuous Current per Port n 7 ms Fault Flag Delay Filters Hot-Plug Events n Industry Standard Pin Order n Short Circuit Pr.

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Published: Sep 14, 2019 |