This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Part Number: TPS7A49
We use TPS7A4901DGNR in 5.6V to 5.0V voltage regulator, typical output current is about 75-80mA.
The PCB is in production from 2014. No an issue till November, 2019.
Starting from the end of November we experienced reduced voltage for about 15-20% of all produced PCBs (down to 3.5V).
Looks like hundreds samples defected.
Test on 2 defected components shows, that current limit starts from 55-60mA. Before reaching this level, voltage regulating is OK.
For good components current limit is according to the specification (>220mA).
Increasing of input voltage to 6-10V does not help.
Could you please help.
Thank you in advance.
Can you take pictures of the failed devices? Do they have the same lot codes?
I will try to get our sales support team in contact to help with the FA process.
John Cummings 蔣康明Texas Instruments 德洲儀器Johncummings@ti.com
Please click the "Resolved" link at the bottom of this post if I have answered your question.
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to JCHK:
In reply to Serhiy Tsap59:
I have our sales in contact with your procurement team to get to the bottom of this.
Thank you very much.
Looking forward to hearing from you.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.