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LT3081 SHUTDOWN - APPLIES TO MANY LT308X LDOS

ARad
  •  Analog Employees 
on Jul 6, 2020

A customer essentially asks, "What is the easiest way to shutdown the LT3081 using a positive referenced logic signal?"  I get this question a lot so I will answer myself in a reply post.

  • +1
    •  Analog Employees 
    on Jul 7, 2020 12:08 AM

    The easiest way to shutdown the LT3081 is to disconnect its input - the IN pin.  If that is not possible, then I show two other options in the images below.  To make the images, I added some commentary to the Adding Shutdown TYPICAL APPLICATION from the LT3085 datasheet, which was the closest reference design that I could find.

    LT3085 DS shutdown app_1_1.png

    LT3085 DS shutdown app_2_1.png