I've created a circuit (image below) Using the LTC3623EUUD#TRPBF. The output should be 5v, however the voltage is oscillating up and down. What would be causing the oscillation?

I used solder paste and surface mount components for this.

enter image description here

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    \$\begingroup\$ If you're measuring the fluctuating voltage via a voltmeter only (no other consumption), yes I'd guess it's expected. Try adding some load and measure again. \$\endgroup\$ – anrieff Mar 22 '20 at 12:42
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    \$\begingroup\$ What is the switching rate, and what is the period of the oscillation? Are they mathematically related? \$\endgroup\$ – Brian Drummond Mar 22 '20 at 13:52
  • \$\begingroup\$ @anrieff Thanks for the suggestion, will check. \$\endgroup\$ – sidewaiise Mar 27 '20 at 3:50
  • \$\begingroup\$ @BrianDrummond I can't get the period of oscillation because I'm lacking an oscilloscope (working from home). There's a chance they are correlated yes. \$\endgroup\$ – sidewaiise Mar 27 '20 at 3:50

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