TPS54386-Q1: 24V to 1V possible with TPS54386?

Igor Chetverikov

Part Number: TPS54386-Q1

Greetings,

I have a problem with large output voltage ripple in any L-C combination. ( Load 0.6 - 2 A)

If i change the input voltage to 12V, then the output ripple is minimal with the same configuration.

What could be the problem?

Example:

+1 Zhao Ma over 3 years ago

Hi, Igor

For high conversion ratio: 24Vin to 1Vout, it need large Cout to make loop stable.

Suggest changing L1=1.5uH, and enlarge Cout bigger than 300uF, then redo the simulation.

0 Igor Chetverikov over 3 years ago in reply to Zhao Ma

Hello, Zhao Ma
Thank you for the answer.

Regards,
Igor

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