I have an LD1117V33 connected to a 12V powersupply. When I plug the output to my osciloscope I see about 280mv peak-to-peak voltage, sometime more.
Is it normal? Is there anything I can do to improve it?
My circuit is pretty simple. 12V - LDO - Output with 2 capacitors in parallel in input and output. 100nF input and 10uF output.