efun
Newbie level 2
Hello everyone,
now I am trying to optimize the load transient response of a LDO.
But it seems like it is difficult to achieve good gain and enough phase margin at the same time in the feedback loop.
I tried to increase the gain to improve the load transient response.
But if the phase margin is not enough, the load transient shows ringing, which makes the response worse.
I am wondering are there any suggestions on how to improve the gain and the phase margin at the same time?
How much loop gain would be enough for a LDO?
If it is not possible to make a good gain and good phase margin at the same time, how shall I make the tradeoff?
now I am trying to optimize the load transient response of a LDO.
But it seems like it is difficult to achieve good gain and enough phase margin at the same time in the feedback loop.
I tried to increase the gain to improve the load transient response.
But if the phase margin is not enough, the load transient shows ringing, which makes the response worse.
I am wondering are there any suggestions on how to improve the gain and the phase margin at the same time?
How much loop gain would be enough for a LDO?
If it is not possible to make a good gain and good phase margin at the same time, how shall I make the tradeoff?