Hi i all i have a problem regarding the output voltage of TPS54331DDAR IC , we have made the design according to the WEBENCH TOOL , When testing the same circuit for input voltage = 5 and output voltage = 4 without connecting load , the output voltage is fluctuating between 1.5 volt to 2.5 volt as seen on Hantek (OSCILLOSCOPE) and DMM.
NEED HELP URGENTLY.
below im attaching the WEBENCH design.