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TPS74901 vs TPS74401

mhayenga
Prodigy 110 points
Other Parts Discussed in Thread: TPS74901, TPS74401, TPS74401-EP, TPS7A7300

Hi,

I currently have a design using the TPS74901 in an FPGA application. I have noticed the TPS74401-EP appears to be a drop-in replacement that is qualified for defense and aerospace applications. Is the TPS74401 in fact a drop in replacement for the 74901 and if so what salient differences are there between these two parts that might affect migration from one device to the other?


On a related note, does TI have an estimated ship date on the new TPS7A7300?  These look like an interesting addition to your 3A LDO regulator lineup that we would like to try as well. Thanks for your time,

Mark Hayenga

  • 0
    TI__Mastermind 41800 points

    Hi Mark,

    The TPS744 and TPS749 are pin-pin compatible with the same functionalities. The TPS744 is an IC with better noise, dropout, and accuracy performance so I recommend using this IC or evaluating your application with one of our EVMs. The differences between the EP devices is that the they have the same functionalities as the non-EP deivice but packaged to meet medical, defense, and aerospace standards. This link explains this in detail.

    http://www.ti.com/lit/sg/sgzt005/sgzt005.pdf

    The TPS7A7300 is our newest 3A device with 39uV noise and 240mV at 3A. Depending on the operating conditions of the TPS744, the TPS7A7300 may be a better option. I will get back to you on an estimated time frame.

    Regards,

    Darwin

     

  • 0 in reply to Darwin Fernandez
    TI__Mastermind 41800 points

    Hi Mark,

    The TPS7A7300 should be available next week. The EVM will also be available so you can evaluate the TPS7A7300 with your application.

    Regards,

    Darwin