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TPS50601A-SP: TPS50601 vs TPS50601A

Part Number: TPS50601A-SP

I see that there is a TPS50601 and TPS50601A.  I have a design that uses the TPS50601.  Should I update to the TPS50601A?  Is the TPS50601A a drop in replacement?  Is the TPS50601 going to be end of life anytime soon? 

thanks!

  • Hi Brent,

    Yes there are two POLs TPS50601 and TPS50601A. TPS50601A is improved version of TPS50601 which has PMOS on the High side as opposed to NMOS. Thus under radiation performance TPS50601A would be a better choice.

    The two parts have same package and # of pins, however some of the pins have different functions. TPS50601-SP pin 16 is boot pin required to drive NMOS. Whereas TPS60601A-SP pin 16 is REFCAP pin. Thus PCB layout for the two will have some differences.
    Will have our system engineer provide you the datasheet for TPS50601A- SP via email.
  • In reply to Ramesh Khanna:

    Hello Brent,

    I don't know if our systems engineer has provided you the datasheet via email; however, it can be found at www.ti.com/.../TPS50601A-SP.

    Thanks,
    Kyle
  • In reply to Ramesh Khanna:

    Given that they are so similar, is there any plan to make the TPS50601 obsolete since it appears that the TPS50601A is the superior part?

  • In reply to Brent Reschak:

    Hello Brenth,

    TI does not obsolete our space rated parts for convenience. There are no plans to obsolete the TPS50601-SP and while it is true that the TPS50601A-SP version offers better performance, there is still quite a large range of applications where the TPS50601-SP is a good solution. In addition, the TPS50601-SP has quite some heritage which is also a very attractive feature in the space market.

    Thanks,
    Kyle
  • In reply to Kyle Rakos:

    this hyperlink does not work.
  • In reply to Brent Reschak:

    Hello Brent,

    There was accidentally a period at the end of the link. You can remove the period or try this updated linke www.ti.com/.../TPS50601A-SP

    Thanks,
    Kyle

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