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LM5022: LM5022: Similar parts to the LM5022 from the same silicon process?

Natan Ranjbar
Prodigy 70 points
Part Number: LM5022
Other Parts Discussed in Thread: LM5157, LM5122

Tool/software:

I'm looking to replace the LM5022 from a heritage baseline design that I'm inheriting. Does TI have any newer/alternative PWM controllers that are made from the same semiconductor Silicon process as the LM5022?

I'm looking for:

- Controller that could provide synchronous switching of the Boost converter w/o having to use external half-bridge driver

- Current Mode Control

- External compensation

- Variable switching frequency

- SPICE models for OrCad PSPICE or LTSpice

Thanks

  • 0
    TI__Genius 16245 points

    Hello Natan,

    Thanks for reaching out to us via e2e.

    Currently we are building asynchronous convetrers, like the LM5157/58.
    But we do not yet offer any synchronous converter with built-in half-bridge.
    With built-in FETs there is no more flexibility regarding the power level of the converter.

    Best regards
    Harry

  • 0 in reply to Harry Hofner
    Prodigy 70 points

    Hi Harry,

    Thanks for your response. What about for controllers that may offer synchronous switching using external switches? I see that TI does have some options for these, but are any of them built with the same semiconductor silicon process as the LM5022? 

  • +1 in reply to Natan Ranjbar
    TI__Genius 16245 points

    Hello Natan,

    I am sorry, but none of our synchronous Boost controllers is using exactly the same process as the LM5022. 
    At the moment, the LM5122 is getting close (but still different, as this is a high voltage process for above 100V).
    But this part is undergoing a re-design and will ultimately get replaced by a successor, using a newer process. 

    Best regards
    Harry