TPS60403: Intermittent oscillation of CFLY+

Dice-K

Part Number: TPS60403

Hi support team,

Intermittent oscillation occurs in the SW waveform when the power is turned on / off.
Is this normal function?
There is no such intermittent oscillation after the power is completely turned on.

Regards,
Dice-K

over 2 years ago

+1 Varun John over 2 years ago

TI__Genius 14600 points

Hi Dice-K,

The switching frequency for this device has a dependency on VIN and load current. I don't see the lower frequency during startup/shutdown as an issue.

Best regards,

Varun

0 Dice-K over 2 years ago in reply to Varun John

Mastermind 6500 points

Hi Varun,
Thank you for your answer.

Is there any material or equation that shows the relationship between the switching frequency, VIN, and load current?
Is it just the following information?