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TPS62933P: TPS62933P VIN>DC20V ，IC Damage

William Lu
Prodigy 10 points
Part Number: TPS62933P

 TPS62933P SCHEMATIC DESIGN IN THIS FILE

  When VIN<20V , Vout =5.1V ，VIN>20V，IC Damage

    How can I CHECK?

  • 0
    TI__Genius 15117 points

    Hello William,

    Thanks for reaching to us.

    I don't think you should add the bead (60ohm?) between Analog_GND and Power_GND. That's not correct. Please remove it and use a short wire to connect.

    Is your output 5.1V or 5V? The Rfb resistors are set to 5V, while you mentioned 5.1V.

    The Pin7 is PG, not SS, so you can remove Css (C29).

    You tied RT to GND, which set 1.2MHz fsw. So please follow our datasheet recommended LC table, using 3.3uH inductor.