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LMR16006: Periodically bumps in 3.3V signal

Part Number: LMR16006

Im experiencing periodically bumps in my 3.3V signal as shown in picture below.

These bumps are too big for me to accept for my design in application for 4-20mA loop signal.

Current through LM16006 fo rmy application is about 3.5 mA. 

Below picture showing how LMR16006 is implemented with the choice of components. Input voltage is 24V but design need to accept up to 30V.

I need to solve this, any help would be highly appreciated.