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LM27313-Q1: Sawtooth Output, unstable, how to fix?

Part Number: LM27313-Q1

5810.Power LM27313 (K-KdB).pdf

Hi all!

I have some trouble regarding to the LM27313-Q1.

I have implemented this circuit upon a project and it seems like the output is unstable, measuring with a scope gives me an unexpected sawtooth as output.
What i'm missing here? Anyone knows where it goes wrong?.

In another sheet I have a display control circuit (display not connected), the only thing thats relevant is that i have connected a 100nF and two tantalums (4.7uF 20V) to the output voltage. But i may assume this would not be the issue?

In the .PDF you can also see the partnumber etc when you press on it

Thanks in advance for any kind of help!

Regards,

K. de Boer