TPS62143: What is the maximum and minimum switching frequency when FSW=L level?

Kazuya Nakai59

Part Number: TPS62143
Other Parts Discussed in Thread: TPS62147

Hello guys,

One of our customers is evaluating TPS62143 on their own board for their new products. Then they found the TPS62143 switching frequency in CCM with FSW=L level was 2.3MHz. This frequency is 8% lower than 2.5MHz (typ). They'd like to know what the maximum and minimum switching frequency are?

Could you please tell me the values?

Your comment would be much appreciated.

Best regards,

Kazuya Nakai.

over 7 years ago

0 Chris Glaser over 7 years ago

TI__Guru**** 151100 points

Hi Nakai-san,

This app note, from the product page, explains common causes of switching frequency variation: www.ti.com/.../slyt646.pdf

As such, there is no specification for the frequency.

As well, please also have a look at the newer TPS62147 which is smaller, more accurate, and has more features.

0 Kazuya Nakai59 over 7 years ago in reply to Chris Glaser

Guru 21675 points

Hello Chris,

Thank you very much for your reply.

Best regards,
Kazuya Nakai.

Power management

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TPS62143: What is the maximum and minimum switching frequency when FSW=L level?