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LMZ10503: Exact working input voltage range to get output voltage of 3.3volt

Part Number: LMZ10503

Hi ,  in one of the project I am using LMZ10503 where output voltage we require is 3.3 volt. But I want to know the input voltage range to get the output voltage of  3.3 volt. Pls reply as soon as possible. It's urgent. please also explain what is the maximum and minimum voltage is required to get output voltage of 3.3 volt.In datasheet in general range is defined from 2.95 to 5.5 volt for input voltage but I want exact data for 3.3volt output voltage.


Kirti Azad


  • Hi Kirti,

    I took the LMZ1050X evaluation board, configured it for 3.3VOUT and did a input voltage dropout sweep between 3V to 4V for different load settings. Attached is a graph of the voltage dropout results. The higher your load requirement is the earlier the voltage dropout begins as you step VIN down.

    The results shows that for 1A loading voltage dropout occurs at roughly 3.4V, 2A dropout at 3.5V, 3A dropout at 3.6V. Hope this answers your question