Boost Converter no load problem
You hearing voice in your head or from other places they shouldn't be is a medical issue, not a electrical engineering one.

However, this buck controller is inappropriate for applications where the load might get very light or go to zero.  Note that the on time for the switch is at least 210 ns.  It also seems that this device uses a fixed frequency.  I didn't read every word of the datasheet (that's your job), but didn't see mention of pulse skipping, and it's pretty clear the frequency doesn't get changed.

If you need to support very low load currents, then use a controller that can switch between PWM and PFM, or do cycle skipping.  It appears this one doesn't.

You could add a resistor to always guarantee the minimum required load current, but that's really a hack working around having the wrong controller in the first place.