LP2981-N: Voltage regulator new IC revision, sourcing and equivalent part numbers

Noel Porter

Part Number: LP2981-N
Other Parts Discussed in Thread: LP2981

Tool/software:

We have been using the following part for +10 years in one of our products and have recently come to learn that a new revision of the IC is going to replace the original part that we had sourced since before the merger between National Semi and TI.

LP2981AIM5-5.0

I understand that the MPN for this part is not due to change with the new revision of the IC and for a period of time the legacy IC and the New IC may be sourced under this MPN number.

The question that I have is, are the following two part numbers the same product for the new IC going forward?

LP2981AIM5-5.0 (from the LP2981-N datasheet)

LP2981A-50DBVR (From the LP2981 datasheet)

Can we be guaranteed that we will only be sourced new IC revisions from now on and is there a way to specify this in the ordering code?

Much appreciated

Kind regards

Noel

5 months ago

0 McKyla Beuttler 5 months ago

TI__Expert 6799 points

Hey Noel,

Thank you for your question! If there is a sales member that you are working with and purchasing directly from TI we can work with our team to help get you and new versions of the IC.

Hope this helps!

McKyla

0 Noel Porter 5 months ago in reply to McKyla Beuttler

Prodigy 25 points

Hi McKyla,

Sorry for the delay I was out of office last week. The sales contact that we have in Aerogen is "Samuel Svensson<s-svensson@ti.com>"

Please confirm the above query when you can

Kind regards

Noel

0 McKyla Beuttler 5 months ago in reply to Noel Porter

TI__Expert 6799 points

Hey Noel,

No problem! Thank you for confirming here, I will work with Samuel to help confirm your order is new chip material. The sample order is going to be process in about 1-2 days and then shipped from our facilities from there. For future orders I can also work with Samuel to help get you the correct material. If you have any issues, please don't hesitate to let us know. You are welcome to reopen this thread or contact Samuel directly.

Please let me know if there is anything else that I can assist with, thank you!

McKyla

0 Noel Porter 5 months ago in reply to McKyla Beuttler

Prodigy 25 points

Hi McKyla,

To be clear I am not looking to order any samples of this IC at this very moment.

As I have outlined in the original query I am looking to confirm if the two ordering codes that I have suggested will result in the identical chip being delivered, or if there is any difference between these can you please explain?

How do we in future orders specify/confirm that we are only going to receive new chip material?

Your help to answer these queries would be much appreciated

Kind regards

Noel

0 McKyla Beuttler 5 months ago in reply to Noel Porter

TI__Expert 6799 points

Hey Noel,

Yes, I am working with Samual to help ensure that you will only receive new chip material for the following devices. There is no further action on from your side that is needed here.

Thank you,

McKyla

0 Noel Porter 5 months ago in reply to McKyla Beuttler

Prodigy 25 points

Hi McKyla,

I would still like to have an answer to the following question.

Are the following two part numbers effectively the same chip material?

LP2981AIM5-5.0 (from the LP2981-N datasheet)

LP2981A-50DBVR (From the LP2981 datasheet)

Kind regards

Noel

0 McKyla Beuttler 5 months ago in reply to Noel Porter

TI__Expert 6799 points

Hey Noel,

This is Texas Instrument confidential information that can currently not be disclosed. If you have any question on nonproprietary information, please reopen the thread.

Thanks,

McKyla

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LP2981-N: Voltage regulator new IC revision, sourcing and equivalent part numbers