NXP is in the process of obsoleting the TDA3663/N1,135/ Very low dropout voltage/quiescent current 3.3 V voltage regulator.
I learned this by trying to order samples of this part for our contract manufacturer of the A71CL kits – and my NXP.com order got rejected by the sample approver for SIP with the following comment: “I recommend not to design in. Last time Buy date is 30-Jun-2019. Last time ship: 30-Jun-2020. There is no direct replacement for this type within NXP”.
We will need to find a suitable drop-in replacement, unfortunately it will have to be from another manufacturer:
1. I ask the community to suggest a solution here - should be doable since this is a common package and pinout
2. once NXP team finds a group of possible replacements, we need to analyze if there is probability of problems caused by the ESR of the needed capacitors:
- step: check the data sheet of the supposed drop-in voltage regulator
- which ESR (Equivalent Series Resistance ) value of the capacitors is expected
- find suitable capacitors
- step: test execution + verification
I kindly ask you any current experience with this drop-in regulator replacement.
Rodolfo Gomes, NXP FAE Identification EMEA