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UC2854B: Looking for PFM controller product like UC2854B that has PSpice or Simplis model available

Part Number: UC2854B
Other Parts Discussed in Thread: UCC28180, UCC28056, UCC28070A, UCC28063A, UCC28064A, UCC28065

Hi experts

I see that no behavioral models are available for the UC2854B. 

Can someone recommend some similar newer devices with equivalent or better performance that do have models?


Jim B