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Littelfuse Introduces LS05006VPQ33 eFuse Protection IC for USB Type-C Devices

LS05006VPQ33 eFuse Protection IC
LS05006VPQ33 eFuse Protection IC

Littelfuse, has unveiled the LS05006VPQ33, its latest addition to the eFuse Protection ICs product line. This advanced eFuse Protective IC offers robust circuit protection for consumer electronics equipped with USB Type-C ports, safeguarding them against short circuits, overvoltage, and electrostatic discharge (ESD) strikes. The LS05006VPQ33 boasts a highly integrated design with a maximum of 28 V for Type-C PD Vbus short to CC/SBU and an impressive 8 KV IEC-61000-4-2 ESD capability, making it a versatile solution for a wide range of USB Type-C applications, including notebooks, desktops, monitors, smartphones, tablets, and USB Type-C PD docking stations.

Bernie Hsieh, the Assistant Product Manager of Protection Semiconductor Business at Littelfuse, highlighted the significance of the LS05006VPQ33 as the first eFuse to provide 20 V short, overvoltage, and system ESD protection for signal pins. This innovation is a crucial step in addressing the challenge of protecting low-voltage silicon circuits in USB Type-C controllers from potential hazards. Many USB Type-C products fail to meet the Type-C specification, and certain adapters delivering only 20 V to Vbus can lead to short circuits due to pin issues, twisting, or moisture. The LS05006VPQ33 effectively shields downstream low-voltage circuits against overvoltage and IEC61000-4-2 ESD strikes, ensuring enhanced reliability, extended product life, reduced repair costs, and a compact form factor.

Engineers seeking a reliable and efficient USB Type-C port protection solution will find the LS05006VPQ33 highly appealing due to its higher Vmax (28 V) and superior 8 KV ESD rating at SBU compared to other available alternatives. The eFuse Protection ICs are now available in tape and reel format, with sample requests accepted through authorized Littelfuse distributors worldwide. For additional technical information or inquiries, interested parties can reach out to Bernie Hsieh at With its cutting-edge features and commitment to creating a sustainable, connected, and safer world, Littelfuse continues to be a leading force in industrial technology manufacturing.


Key Features & Benefits

  • Automatically process signals and work transparently without interference or burden on Type-C controller operation.
  • Overvoltage protection for 4-channels (CCxI, SBUxI) with Overvoltage protection for 4-channels (CCxI, SBUxI) with 24 V tolerant switch and IEC 61000-4-2 ESD protection.
  • Up to 600 mA high current capability for CC1/CC2 overvoltage protection FETs to pass VCONN power.
  • Include integrated CC1/CC2 pull-down resistors to handle mobile devices dead battery conditions.
  • Designed in a compact package QFN3x3_20L



  • USB Type-C Devices
  • Notebook
  • Desktop
  • Monitor
  • Industry PC
  • Point of Sales
  • Smart Phone
  • Tablet
  • Docking Stations
Component Datasheet

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