UCC25705: Switching Frequency

Jeyaprakash K

Part Number: UCC25705

Hi,

I want to operate my buck converter at 100KHz with UCC25705 PWM controller. Is this possible?

I came across UCC35075 is used one of the evaluation board at 500KHz switching frequency. Hence, I hope UCC25705 also can be used at 100KHz. Can you please confirm?

Thanks,

Jeyaprakash K

over 5 years ago

0 Sonal Singh over 5 years ago

TI__Expert 6080 points

Hello Jeyaprakash,

You can use the UCC25705 in a 100kHz design, please use the calculator tool provided below to cross-check your values:

Regards,

Sonal

0 Jeyaprakash K over 5 years ago in reply to Sonal Singh

Prodigy 180 points

Thanks Sonal for your prompt response!

0 senthil kumar92 over 5 years ago in reply to Sonal Singh

Prodigy 10 points

hi,

just for clarification, then why data sheet specifies only in the region between 0.9Mhz to 1Mhz.

0 Sonal Singh over 5 years ago in reply to senthil kumar92

TI__Expert 6080 points

The Oscillator section of the datasheet mentions the typical operating frequency of 1MHz.

Regards,

Sonal

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UCC25705: Switching Frequency