Logic-Controlled High-Side Power Switch

NX3P190UK

The NX3P190 is a high-side load switch which features a low ON resistance P-channel MOSFET that supports more than 500 mA of continuous current. Designed for operation from 1.1 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 NX3P190 is ideal for portable, battery operated applications due to low ground current and ultra-low shutdown current.

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Block Diagram

NX3P190 Block Diagram

NX3P190 Block Diagram
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Features

  • Wide supply voltage range from 1.1 V to 3.6 V
  • Very low ON resistance:
    • 95 mΩ (typical) at a supply voltage of 1.8 V
  • High noise immunity
  • Low-power mode when EN is LOW
  • Low ground current (2 µA maximum)
  • 1.2 V control logic at a supply voltage of 3.6 V
  • High current handling capability (500 mA continuous current)
  • ESD protection:
    • HBM JESD22-A114F Class 3A exceeds 4000 V
    • CDM AEC-Q100-011 revision B exceeds 500 V
  • Specified from -40 ℃ to +85 ℃

Target Applications

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

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