This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LM4030: Application Inquiry

Part Number: LM4030
Other Parts Discussed in Thread: ATL431

Hello Team,

What exactly happens when the applied voltage to LM4030 is smaller than its reverse breakdown voltage (2,5 V)?

Does any current flow via LM4030 in this condition? Or there is no current and the current starts flowing only above 2,5 V?



  • Hi Renan,

    If the LM4030 is being starved for voltage (below 2.5V), it will leak a negligible amount of current. It will be less than 120uA (which is the minimum operating current).

    Here is a curve from a similar part (ATL431) that still illustrates the behavior I am talking about: