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LM5021: LM5021 similar model

jeno.zhang
Expert 2055 points
Part Number: LM5021
Other Parts Discussed in Thread: UCC28742, LM5023

HI,

The VCC voltage of LM5021 is too low, and the customer needs a voltage of around 12-15V. Are there any similar devices that can be recommended？

Thanks！

  • 0
    TI__Intellectual 2020 points

    Hello,

    Thanks for reaching out, may I advise the input and output power level of your project?

    Unfortunately, there are no pin to pin devices to LM5021. 

     But for cost concerns, UCC28742 may be your option for a Secondary-side regulated flyback controller that is SOT23-6 packaged. No need for VCC pin concerns anymore.

    For better efficiency, LM5023 is a quasi-resonant current mode PWM controller that is in VSSOP8 package. VCC pin controller enable threshold is 12.8V.

    THanks.