Alternative Parts


Features and Benefits

  • Wide Operating Voltage Range: 2.5V to 60V
  • Overvoltage Protection to 100V
  • Reverse Supply Protection to –40V
  • LTC4367: Blocks 50Hz and 60Hz AC Power
  • LTC4367: 32ms Recovery from Fault
  • LTC4367-1: Fast 500μs Recovery from Fault
  • No Input Capacitor or TVS Required for Most Applications
  • Adjustable Undervoltage and Overvoltage Thresholds
  • Controls Back-to-Back N-Channel MOSFETs
  • Low Operating Current: 70μA
  • Low Shutdown Current: 5μA
  • 8-Pin MSOP and 3mm × 3mm DFN Packages
  • AEC-Q100 Qualified for Automotive Applications
  • Product Details

    The LTC4367 protects applications where power supply input voltages may be too high, too low or even negative. It does this by controlling the gate voltages of a pair of external N-channel MOSFETs to ensure that the output stays within a safe operating range.The LTC4367 withstands voltages between –40V and 100V and has an operating range of 2.5V to 60V, while consuming only 70μA in normal operation.

    Two comparator inputs allow configuration of the overvoltage (OV) and undervoltage (UV) set points using an external resistive divider. A shutdown pin provides external control for enabling and disabling the MOSFETs as well as placing the device in a low current shutdown state. A fault output indicates that the GATE pin is pulling low when the part is in shutdown or the input voltage is outside the UV and OV set points.

    The LTC4367 has a 32ms turn-on delay that debounces live connections and blocks 50Hz to 60Hz AC power. For fast recovery after faults, the LTC4367-1 has a reduced turn-on delay of 500μs.


    • Portable Instrumentation
    • Industrial Automation
    • Automotive Surge (Load Dump) Protection
    • Network Equipment

    Product Lifecycle icon-recommended Recommended for New Designs

    This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

    Evaluation Kits (2)

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    Reference Designs (1)

    Product Recommendations

    LTC4367 Companion Parts

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    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.