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LM5071: Using in 3rd mode (min ripple) with transformer primary winding as inductor; not working at all

Part Number: LM5071

We are using LM5071 part in 3rd mode (min ripple configuration) for the rating 6V,0.6A. We are using transformer primary winding as an inductor for the same. Below are some detials - 

VIn= 24V

Vout= 6V, 0.6A

Fsw= 580Khz (RON=115K).

With the above configuration, the switcher is not working properly and giving 0.348V output. Please do let us know, why we are facing this issue, is there any resolution for this.

Please find attached datasheet of transformer.

750318836r00 Spec with 100mA per coil capacity 40uH.pdf