I have an unknown IC with markings either 28CT SN88 or 28CT SNBB that has been damaged, does anyone recognise any of the features.
Hi dom.burke,
Welcome to the TechForum.
It’s the LM5069-2 hot-swap controller.
Specifically: LM5069MMX-2/NOPB
From page 32 of the datasheet:
Thank you so much for this information, you are amazing with the response time. I have ordered a few today and hope to have my board up and running soon, I also bought a few spare if other current limiting IC’s were also damaged whilst plugging in two chargers at the same time. Hopefully this helps others during searches



