The LM3525 provides Universal Serial Bus standard power switch and over-current
protection for all host port applications. The single port device is ideal for Notebook PC and
Handheld PC applications that supply power to one port.
A 1 ms delay on fault flag output prevents erroneous overcurrent reporting caused by
inrush currents during the hot-plug events.
The LM3525 accepts an input voltage between 2.7V and 5.5V allowing use as a device-based
inrush current limiter for 3.3V USB peripherals, as well as Root and Self-Powered Hubs at 5.5V. The
Enable input accepts both 3.3V and 5.0V logic thresholds.
The small size, low RON, and 1 ms fault flag delay make the LM3525
a good choice for root hubs as well as ganged power control in space-critical self-powered
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