LM2596T-5.0 Switch-mode powersupply

Discussion in 'Electronics Resources' started by Crist, Dec 17, 2013.

  1. Crist

    Thread Starter New Member

    Jul 24, 2010

    I got few LM2596T-5.0 ICs and I need to know that they are working properly,
    because every time I tried setting it up on bread board the output is somethig closer to 12V (my input source is a 12V 2A DC power adapter) instead of 5V.

    I got 5 of them each giving the same result despite the fact they are marked "LM2596T-5.0" which supposed to give an output of 5V.

    I also doubt that whether the problem is with the chip itself.

    Your held will be a great help

    Thanks !
  2. MikeML

    AAC Fanatic!

    Oct 2, 2009
    Without looking at the original schematic, work backwards to trace out the connections on your test board and draw a new schematic based only on the test board. Now compare the original to the "as wired". I'll bet you find a screw-up (techical term).