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TPS630250: Buck/Boost Converter Circuit

Ali Khan
Intellectual 810 points
Part Number: TPS630250

Hi,

I am using this TPS630250RNCR to Buck/Boost the voltage of a 1S lipo cell. I attached a link to Cell at the bottom. In my first design, there were some unknown issues that still I didn't figure out.

In the new design, I have the following questions.

What should be the track width for inductor connection with IC? It is close enough placed but I need this information. I attached a picture of the current situation.

Note: LOAD is less than 1A at the output of the circuit

  • 0
    TI__Mastermind 19360 points

    Hi  Ali

    the RMS current of these traces should be about 1A during BUCK working. during boost working, it is depend on the voltage of input and output. but i think it should be less than 1.5A. so, if you can set the width of these trance 20mil least. that should be ok.

    also, i think the layout is not a good one, could you take the layout example in the datasheet as ref?  espically the power stage.  i think it will be much better.

    Regards

    Tao