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Littelfuse Load Switch ICs

Featuring ultra-low power consumption

Littelfuse’s Load Switch ICs are ultra-efficient, 2 and 4 A-rated load switches with integrated true reverse current blocking (TRCB) and slew rate control. Their best-in-class efficiency makes them ideal for mobile and wearable consumer electronics.

The Load Switch ICs support the industry's lowest quiescent current (IQ), low RON, and shutdown current (ISD), helping designers reduce parasitic leakage current, improve system efficiency, and increase overall battery lifetime.


  • Power saving results in a significantly longer battery lifetime.
  • The lower power consumption (lower RON, IQ, ISD) provides high-efficiency operation.


  • They use a chip-scale package (with WLCSP) to replace discrete circuits with multiple functional integrations such as power MOSFET, reverse diode, discharge MOSFET, passive components, etc.
  • The chip-scale-size form factor also significantly reduces PCB space requirement.

These ICs are ideal for use in a wide range of electronics designs, including:

  • Handheld devices
  • Wearables
  • Internet of Things (IoT)
  • SSD storage
  • Building automation
  • Consumer electronics


Littelfuse Load Switch ICs