Voltage Regulators: UA7805UC3 & L7805CV

Discussion in 'General Electronics Chat' started by tk3000, Sep 11, 2011.

  1. tk3000

    Thread Starter New Member

    Sep 11, 2011
    Hello Folks,
    I am in the process of replacing some components in an ancient Video Game Console (the mattel Intellivision). Originalyl it had a UA7805UC3 voltage regulator, I did not find any reference to that particular voltage regulator, but I tend to believe that it is interchangeable with the the L7805CV; but I may be wrong. Would anyone know if it is interchangeable or not? Thanks for any input.

  2. praondevou

    AAC Fanatic!

    Jul 9, 2011
    Yes, if they have the same package they should be interchangeable.
    tk3000 likes this.
  3. SgtWookie


    Jul 17, 2007
    Here is a link to TI's uA7805 page:
    The datasheet for the uA78xx series is downloadable from that page.
    Direct link to datasheet: http://www.ti.com/lit/ds/symlink/ua7805.pdf

    The suffixes are different for various packages and miscellaneous configuration details. There has been a considerable re-vamping of part number suffixes over the last few years due to RoHS concerns (lead-free, etc)

    The 78xx series of regulators are commodity parts, which means lots of different manufacturers make them, with different prefixes and suffixes - but the base numbers (7805, 7809, etc) are the same, and the pinouts are the same for a given package, and the specifications are all very similar.
    tk3000 likes this.
  4. tk3000

    Thread Starter New Member

    Sep 11, 2011
    SgtWookie, praondevou: thank you so much for your insights and information! It is greatly appreciated!