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LM3525 - Single Port USB Power Switch and Over-Current Protection

Download the LM3525 datasheet PDF. This datasheet also covers the LM3 variant, as both devices belong to the same single port usb power switch and over-current protection family and are provided as variant models within a single manufacturer datasheet.

General Description

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.

Key Features

  • n 1 ms Fault Flag Delay During Hot-Plug Events n Smooth Turn-On Eliminates Inrush Induced Voltage Drop n UL Recognized Component: REF # 205202 n 1A Nominal Short Circuit Output Current Protects Notebook PC Power Supplies n Thermal Shutdown Protects Device in Direct Short Condition n 500mA Minimum Continuous Load Current n Small SO-8 Package Minimizes Board Space n 2.7V to 5.5V Input Voltage Range n Switch Resistance ≤ 120 mΩ Max. at VIN = 5V n 1µA Max Standby Current n 100 µA Max Operating Curre.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM3-525.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LM3525 Single Port USB Power Switch and Over-Current Protection Texas Instruments
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LM3526 Dual Port USB Power Switch and Over-Current Protection Texas Instruments
LM3528 Multi Display LED Driver Texas Instruments
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Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LM3520 Integrated White LED Driver
LM3524D Regulating Pulse Width Modulator
LM3526 Dual Port USB Power Switch and Over-Current Protection
LM35 Precision Centigrade Temperature Sensors
LM350 3-Amp Adjustable Regulators

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM3525 Single Port USB Power Switch and Over-Current Protection January 2000 LM3525 Single Port USB Power Switch and Over-Current Protection General Description 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.