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LP2985A: Meaning of package marking differences and verification of genuine and counterfeit.

Part Number: LP2985A


Q1) Meaning of package marking differences

I noticed a difference in the package markings between the two photos of LP2985A-33DBVR. Could you please explain the significance of this difference and the criteria used?


Q2) Verification of genuine and counterfeit

Would it be possible to verify the authenticity based on the label photo below?

Q3) The product in the left photo of Q1 outputs the correct voltage, while the product in the right photo outputs 0V. Is this due to a design error in the circuit, a performance issue caused by the difference in package markings, or could it be that the product is counterfeit?

  • Hello Kim,

    Please be aware that any purchases through the grey market, brokers or unauthorized distribution cannot be supported due to uncertainties in the supply chain regarding chain of custody of the products. All other verification requests must be worked through their supply chain.


    In order for TI to begin the verification process all of the following information is required.  Please provide the required information to

    Required information


    1. Completed Counterfeit Request Form
    2. High quality pictures of the bottom & top of the device(s)
    3. High quality pictures of the 2D bar code labels.  
    4. Copies/pictures of shipping documents, i.e. packing slip showing the origin of the devices to TI.  (If this information cannot be provided we are unable to provide verification due to uncertainties regarding chain of custody of the products.) 
    5. Provide device application.


    Once the required information is provided and submitted, your request will be reviewed for verification.



    Prakash L