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Texas Instruments Power Switch IC's Part #LM3525M-L/NOPB | Integrated Circuit | DEX

Texas Instruments Power Switch IC's Part #LM3525M-L/NOPB | Integrated Circuit | DEX

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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 hubs. 



  • Compatible with USB1.1 and USB 2.0
  • 1 ms Fault Flag Delay During Hot-Plug Events
  • Smooth Turn-On Eliminates Inrush Induced Voltage Drop
  • UL Recognized Component: REF # 205202
  • 1A Nominal Short Circuit Output Current Protects Notebook PC Power Supplies
  • Thermal Shutdown Protects Device in Direct Short Condition 
  • 500mA Minimum Continuous Load Current
  • Small SOIC-8 Package Minimizes Board Space
  • 2.7V to 5.5V Input Voltage Range
  • Switch Resistance ≤ 120 mΩ Max. at VIN = 5V
  • 1µA Max Standby Current
  • 100 µA Max Operating Current
  • Undervoltage Lockout (UVLO)




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