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Capacitor of TPS23753A

We have a question about circuit of TPS23753AEVM.

We need to choice the capacitor of C21 in EVM user's guide p.4 figure 1.

http://www.ti.com/jp/lit/ug/slvu314f/slvu314f.pdf

Can we use this capacitor for C21.

GRM033R61C333KE84

https://psearch.en.murata.com/capacitor/product/GRM033R61C333KE84%23.html

GRM155R71C473KA01

https://psearch.en.murata.com/capacitor/product/GRM155R71C473KA01%23.html

Which capacitor do you recommend?

Best regards,

Takahiro Nishizawa

  • Hello Takahiro Nishizawa,

    Thank you for your question. I will say we give three options in the EVM depending on the output voltage. 

    Assuming you are using a 3.3V design (Since the capacitor values match more closely to this EVM value), I would recommend the 47nF capacitor. In general, I would recommend staying as close to the EVM as possible. It appears to me the only difference is the capacitor size, from 0603 to 0402. Everything else (47nF, +-10%,16V, X7R) is matching. If that is true, you can certainly use it and the performance should be very similar. 

    Regards,

    Michael Pahl