Speakerguy
Active Member
I could hook this up on my breadboard, but I only have one type of LDO regulator at home and it wouldn't give me a true answer with a sample of n=1.
Do adjustable LDO and quasi-LDO regulators, which normally need an output capacitor sized appropriately for stability, operate OK as current sources? Do I need to throw a compensation cap in there somewhere or will this setup be inherently stable like it is with non-LDO types? I've only ever used LM317s and LM338Ks as quickie current sources, and I haven't seen the issue addressed in any LDO data sheet that I've read.
Do adjustable LDO and quasi-LDO regulators, which normally need an output capacitor sized appropriately for stability, operate OK as current sources? Do I need to throw a compensation cap in there somewhere or will this setup be inherently stable like it is with non-LDO types? I've only ever used LM317s and LM338Ks as quickie current sources, and I haven't seen the issue addressed in any LDO data sheet that I've read.