I have built a buck converter on the TS30011. Unfortunately, I am getting terrible noise on the output.
External Parts Used:
My low-frequency noise is not terrible, but I am being plagued by the high-frequency noise. I have noticed two immediate errors with my design.
1) I did not separate the analog ground and the power ground as it says in the datasheet. Apparently it is only supposed to be connected at a single point, but I did not do this.
2) I must add bypass capacitors at the input of the device as close as possible.
I am hoping that these two issues alone will make my device usable, but I am wondering if there are any other suggestions for removing high-frequency noise from a buck converter.