Logic-Controlled High-Side Power Switch

NX3P1108UK

The NX3P1108 is a high-side load switch which features a low ON resistance P-channel MOSFET that supports more than 1.5 A of continuous current. It has an integrated output discharge resistor to discharge the output capacitance when disabled. Designed for operation from 0.9 V to 3.6 V, it is used in power domain isolation applications to reduce power dissipation and extend battery life. The enable logic includes integrated logic level translation making the device compatible with lower voltage processors and controllers. The NX3P1108 is ideal for portable, battery operated applications due to low ground current and ultra-low OFF-state current.

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Block Diagram

NX3P1108 Block Diagram

NX3P1108 Block Diagram
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Features

  • Wide supply voltage range from 0.9 V to 3.6 V
  • Very low ON resistance:
    • 34 mΩ at a supply voltage of 3.3 V
  • High noise immunity
  • Low OFF-state leakage current (2.0 μA maximum)
  • 1.2 V control logic at a supply voltage of 3.6 V
  • High current handling capability (1.5 A continuous current)
  • Internal output discharge resistor
  • Turn-on slew rate limiting
  • ESD protection:
    • HBM JESD22-A114F Class 3A exceeds 4000 V
    • CDM AEC-Q100-011 revision B exceeds 500 V
  • Specified from -40 °C to +85 °C

Target Applications

  • Cell phone
  • Digital cameras and audio devices
  • Portable and battery-powered equipment

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