TPS65580: oscillator

Hirotaka Matsumoto

Part Number: TPS65580

Hi all

Would you mind if we ask TPS65580?

Does it have oscillator inside of the device?(We could not find it on the datasheet block diagram.)
If it has oscillator, we guess that it is possible to prevent from beat noise.

Kind regards,

Hirotaka Matsumoto

over 6 years ago

0 Hirotaka Matsumoto over 6 years ago

Guru 27525 points

Hi team

If you have some advice, could you let us know?

Kind regards,

Hirotaka Matsumoto

0 Zhao Ma over 6 years ago

TI__Genius 15135 points

Hi,
TPS65580 is DCAP2 architecture, there is no oscillator.
But it can work at fixed switching when in CCM.

0 Hirotaka Matsumoto over 6 years ago in reply to Zhao Ma

Guru 27525 points

Zhao san

Thank you for your reply!
It can work at fixed switching when in CCM
->For example, when it occurs transient current, or repeat of 0A(light load) <-> 2A(heavy load), is it possible to work at fixed switching?

Kind regards,

Hirotaka Matsumoto

0 Hirotaka Matsumoto over 6 years ago in reply to Hirotaka Matsumoto

Guru 27525 points

Zhao san

Could you give us the reply?

Kind regards,

Hirotaka Matsumoto

0 Zhao Ma over 6 years ago in reply to Hirotaka Matsumoto

TI__Genius 15135 points

Hi, Matsumoto san

Sorry for late, i went to vacation for 2 days.

When load transient, the converter cannot keep fixed switching.

Once enter DCM(light load), the switching frequency will reduce immediately.

0 Hirotaka Matsumoto over 6 years ago in reply to Zhao Ma

Guru 27525 points

Zhao san

Thank you so much for your reply!!

OK we got it.

Kind regards,

Hirotaka Matsumoto

Power management

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TPS65580: oscillator