TPS62147: Fsw accuracy of TPS62147

Yoshifumi Shimojima

Prodigy 80 points

Part Number: TPS62147

Dear TI support team,

I have a question about TPS62147RGXR(in case of VIN=5V, FSEL=high(2.5MHz)).

How much is variable of Fsw expected depending on individual difference or etc. if output current is fixed value?

I would like to know accuracy of switching frequency.

Best regards,

Yoshifumi Shimojima

over 3 years ago

0 Joseph Conrad over 3 years ago

TI__Expert 7860 points

Hi Yoshifumi,

Since this device uses DCS-Control and isn't a fixed frequency topology, the switching frequency will vary with Vin and Iout. The best representation of this behavior is in the datasheet Figures 70-84.

Thanks,

Joseph

+1 Yoshifumi Shimojima over 3 years ago in reply to Joseph Conrad

Prodigy 80 points

Hi Joseph,

I understand. I will read the datasheet again.

Thank you!

Yoshifumi Shimojima

+1 Zixu Wang over 3 years ago in reply to Yoshifumi Shimojima

TI__Expert 8100 points

Hi Yoshifumi,

Thanks for your cooperation! And I will close the case!

BRs

Zixu

Power management

Power management forum

TPS62147: Fsw accuracy of TPS62147