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CSD97394Q4M: CSD97394Q4M - more output voltage is needed

Part Number: CSD97394Q4M
Other Parts Discussed in Thread: CSD97396Q4M

Hi

I am using CSD97396Q4M in freq 80Khz to 200Khz (my Vin is 2.5-5V) I have Vsw that is >30V and sometimes it burns I need another component that can handle bigger voltages. I havent found such power stag.

Do you have something you can recommend on? maybe a transistor with DCDC? or if you have another component i can use instead it will be better.  

thanks in advanced 

  • Hi Sam,

    To prevent damaged caused by high VSW ringing, you may use one or more from below methods:

    1. Place VIN caps as close as possible to power stage VIN/PGND pins, including a 1uf/0402 cap which to be placed the closest place to power stage to minimize parasitic inductance.

    2. Use BootR resistor in series with Bootstrap capacitor. Add BootR resistance can help to reduce VSW peak;

    3. Add RC snubber which can also help to reduce the VSW ringing.

    Best,

    Qingquan

     

  • Hi

    thank you very much for the swipe response but, the thing is that it is not noise nor ringing this is the real voltage values I am getting in the output when I am close to the resonance freq and I would like to keep this voltage.

    do you have a component that is design to have 60V in its output? 

    Regards,

  • Hi Sam,

    We don't have any power stage with voltage rating higher than 60V in my group. But you may check other product groups, such as boost converters/modules which may suit your interest as you have low Vin and high Vout.

    Best,

    Qingquan