help:the simulation of LDO's BODE PLOT?

[qutang]

I want to know the stability of LDO,how can I add the signal to simulate the LDO,to decide it can work stable?

 

[sunking]

simulate the phase margin under all kinds of condition. such as different load, different ESR of cap, different cap value and so on

 

[ks-7]

Hi! you can reference this paper!

 

[qutang]

sunking:
I want to know how and where can I add the signal ? plz give me a example!

 

[vhegde]

sunking:
I want to know how and where can I add the signal ? plz give me a example!

Qutang,
What do you mean by adding a signal? Are you talking about Closed loop simulation?

 

[jiangwp]

To simulate the Loop Gain and Loop Phase under different loading.
I think the breaking loop to get the close loop parameter and considering the loading effects is difficult. So i give you a attach to get the way.