How to Understand the Maximum Duty Cycle TPS54335 ?

Osial Ou

I found on the table TPS54335/6 was defined as 90% as the maximum duty cycle.

How to understand it? Does it support all corner condition for 3A operating?

Can I caculate the Vout/VIN less than 90%?

Or this 90% is only ensured on EVM about the SW waveform, and for minimum VIN for given Vout should be higher than 1.1 times that of Vout?

0 JohnTucker over 11 years ago

I did not see any reference to 90 % maximum duty cycle. Where did you see it?

0 Osial Ou over 11 years ago in reply to JohnTucker

JohnTucker said:

I did not see any reference to 90 % maximum duty cycle. Where did you see it?

Thank you for your reply, John.

In the folder of TPS54335, there is a comparison table between it and other part, the maximum duty cycle shows 90%.

0 JohnTucker over 11 years ago in reply to Osial Ou

Who knows where that table came from...I'll see what I can find out tomorrow.

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