A related question is a question created from another question. When the related question is created, it will be automatically linked to the original question.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
I am a FAE of a distributor dealing with TI products. My customer is using a TL431 device. The capacitor between anode and cathode in use has become EOL, but there is no substitute product, and the capacitor manufacturer has requested a capacity change. The purpose of this capacitor seems to be oscillation prevention + voltage stabilization, but the graph on the TI data sheet was only Ta = 25°C. I want something with a wider range of ambient temperatures. Can you provide information?
The phase margin plot mainly varies because of gm(output transistor) /CL. As this factor goes don , Phase margin no decreases.
gm α I_load/vt ,
since vt increases with temperature so phase margin will degrade at higher temperature for a given current (I_load) and CL combination. Hence stable region will shrink with temperature.
