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TINA/Spice/LM25085: LM25085 convergence error while using zero initial values

Part Number: LM25085
Other Parts Discussed in Thread: TINA-TI, LM3409,

Tool/software: TINA-TI or Spice Models

Hello,

I have downloaded the LM25085 simulation model for Tina from Webench and if I use "calculate operating point" for the transient analyses the model works fine but if I use "zero initial values" I will get a convergence error. The problem is I would like to combine the LM25085 and LM3409 models but the later one cannot use "calculate operating point".

Which analysis parameters do I have to touch to get the LM25085 working with zero initial values?

TIA
  Manuel