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    High-Current Over-Voltage Protector
    High-Current Over-Voltage Protector

    The SGM40653/4/5 over-voltage protection devices feature a low 62mΩ (TYP, CSP package)/73mΩ (TYP, TDFN package) RON internal FET and protect low-voltage systems against voltage faults up to +28VDC. An internal clamp also protects the devices from surges up to +120V. When the input voltage exceeds the over-voltage threshold, the internal FET is turned off to prevent damage to the protected downstream components.

    The over-voltage protection threshold can be adjusted with optional external resistors to any voltage between 4V and 20V. If the OVLO input is below the external OVLO select voltage, the SGM40653/4/5 automatically choose the internal trip thresholds. The internal over-voltage thresholds (VIN_OVLO) are preset to be 15.39V/6.8V/5.81V typical (SGM40653/4/5). The devices feature an open-drain  ACOK  output indicating a stable supply between minimum supply voltage and VOVLO. The SGM40653/4/5 are also protected against over-current events by an internal thermal shutdown. The SGM40653/4/5 also have enable control to reduce power consumption.

    The SGM40653/4/5 are available in Green TDFN-3×3-12L and WLCSP-1.30×1.83-12B packages, and operate over an ambient temperature range of -40 to +85.



    • Protect High-Power Portable Devices
      Wide Operating Input Voltage Protection from 2.5V to 28V
      Integrated 62mΩ (TYP) N-Channel MOSFET Switch (CSP Package)
      Integrated 73mΩ (TYP) N-Channel MOSFET Switch (TDFN Package)

    • Flexible Over-Voltage Protection Design
      Adjustable Over-Voltage Protection Trip Level
      Wide Adjustable OVLO Threshold Range from 4V to 20V

      Internal Preset OVLO Thresholds:
        15.39V (SGM40653)
         6.8V (SGM40654)
         5.81V (SGM40655)

    • Additional Protection Features Increase System Reliability
      Surge Immunity up to +120V
      Soft-Start to Minimize In-Rush Current
      Internal 18.5ms Startup Debounce
      Thermal Shutdown Protection

    • Enable Function

    • -40 to +85 Operating Temperature Range

    • Available in Green WLCSP-1.30×1.83-12B and TDFN-3×3-12L Packages


    Smart Phones
    Tablet PCs
    Mobile Internet Devices

    Part NumberStatusPackagePinsPb-FreeTemp Range
    SGM40654YG/TRProductionWLCSP-1.30×1.83-12B12Y-40℃ to +85℃
    SGM40654YTDF12G/TRProductionTDFN-3×3-12L12Y-40℃ to +85℃