Hello,
The following is stated page 1 of the LP 2992 datasheet: "The LP2992 is stable with output capacitor equivalent series resistance (ESR) as low as 5 mΩ, which allows the use of ceramic capacitors on the output."
I've looked at several ceramic capacitor options and all of them have ESR < 5 mΩ at some frequency.
For example: AVX, PN: 12066D106KAT2A (10 µF, 6.3V, X5R, 1206) is just under 5 mΩ at 1 MHz. Other options are typically somewhere between 1 mΩ and 5 mΩ.
Is there an output capacitor series that is recommended for use with the LP2992?
On a separate note, based on other posts on E2E, it seems like TI is discouraging customers from using the LP2992. Is there reason to think this part will become obsolete in the near future?
Thank you in advance,
Leo