SY8003 instead of SY8003A

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  • someonenotyou
    Senior Member
    • Feb 2021
    • 51
    • LV

    #1

    SY8003 instead of SY8003A

    Hi.

    I have a Lenovo HLS1C_HLS1D LA-L502P board with bad SY8003A DC/DC converter.
    I have a different mother board witch contains SY8003 DC/DC converter.

    Can I use SY8003 instead of SY8003A converter?

    These are the differences -
    • Short Circuit Protection:
      • SY8003: Uses latch-off protection. This means that when a short circuit is detected, the device will shut down and remain off until it is manually reset.
      • SY8003A: Uses hiccup mode protection. In this mode, the device will repeatedly attempt to restart after a short circuit is detected. If the short circuit persists, it will continue to cycle on and off until the fault is cleared.
    • Over-Voltage Protection:
      • SY8003: Has latch-off protection for over-voltage conditions. Similar to short circuit protection, the device will shut down and remain off until manually reset.
      • SY8003A: Does not have latch-off protection for over-voltage conditions. It will continue to operate without shutting down.
    ​Thank you.
  • Answer selected by someonenotyou at 03-06-2025, 10:53 AM.
    mon2
    Badcaps Legend
    • Dec 2019
    • 13935
    • Canada

    Based on the shared differences, yes. Keep in mind that if there was a trigger even like over-voltage, this regulator will shut off and only a power cycle of the board will reset the device.

    Comment

    • mon2
      Badcaps Legend
      • Dec 2019
      • 13935
      • Canada

      #2
      Based on the shared differences, yes. Keep in mind that if there was a trigger even like over-voltage, this regulator will shut off and only a power cycle of the board will reset the device.

      Comment

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