I am using the LT3045-1 to post-regulate the output of a switching regulator.
On page 18 and 19 of the datasheet of LT3045-1 I saw that using a ceramic capacitor at the SET pin can cause significant output noise due to piezoelectric response.
However, on LT3045-1’s DC2593A demo board, I saw that a ceramic capacitor is used at SET pin.
Is there a reason why ceramic capacitor is used here even though it causes high output noise?
When I check the tantalum capacitor alternatives, I saw that their life time is so short (1000 hours - 2000 hours).
The film capacitors are way too big compared to ceramic ones of the same capacitance.
And the electrolytic ones have high 1/f noise as stated on the LT3045-1 datasheet.
Do you think feedthrough capacitors could be a good alternative instead of these ones?
Thank you very much for your help.