I'm going to design a LDO, the output capacitor is 0.1uF ceramic capacitor. But I have not the esr value of this capacitor. Who can give me some advice or papers about the esr value and the dependence of esr on temperature?
Thanks
No one knows the detailed value of 0.1uF ceramic capacitor, certainly not except the manufacturer of capacitor. Good manufacturer normally give a curve of ESR change range, so u can refer. But if not, u can estimate ESR, generally the value of ESR is on the order of mΩ.
You better make sure what the ESR range is because its value is critical. Most LDO manufacturers will specify a range of ESR values that will result in stable operation. So instability can occur if the ESR is too low or too high for different reasons. A good paper that describes this is
You should be able to measure the ESR with an impedance analyzer. If you don't have access to this, look at the techniques described in the following links
**broken link removed** https://www.emcesd.com/tt020100.htm