I have the schematic below, which i have created with the ADI Linear Regulators Excel tool.
I am producing Vout 1 = 2.8 Volts
Vout 2 = 2.5 Volts
Vout 3 = 1.8 Volts
I am pulsing the EN1 at 4Hz to drive a circuit but pulsing AC spikes exactly at 4Hz appear at the GND, VIN, Vout 1, Vout 2 , Vout 3 , around -/+20mV .
Can you please help me eradicate that issue as soon as possible.
I am not exactly sure what is causing the issue, I am pulsing the EN1 directly from a pin of a MCU.
Thanks in advance.