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Simulation trouble in LTC2924 with DC/DC


Each LTM8024 and LTC2924 is a good result.(We use open macromodel's test fixture )

But we put ICs in same schematic, LTC2924 out_n pin reach -100V order.

If all LT8024 pins connect to GND, we get a bad result.  

Can we improve this case with any ways?


Best regards

Thank you very much