D-cap family and COT

Jamie Tseng

Intellectual 2405 points

Hi Team,

One of my communication customer is interesting in TI’s COT DCDC solutions. They are going to work on D2D application.

Here are following topic they want to discuss:

The main technical operation principle of COT,

The main technical operation principle of COT.
What is the difference between TI COT and other ACOT or COT? And what are the advantages of TI COT?
What are the main influencing factors of Jitter's consideration and the correct measurement method?
What is the measurement and definition method for Line/Load Regulation?

Can you help find a suitable person to hold the training?

Thanks and best regards,

Jamie

over 4 years ago

0 Andy Chen over 4 years ago

TI__Mastermind 33625 points

Hi Jamie,

What's customer's application requirement?

Vin range

Vout

Load current

Fsw

concern on Iq?

B R

Andy

0 Orlando Murray over 4 years ago

TI__Mastermind 22301 points

Jamie,

Hope you are doing well!!

What is the schedule or timeline for this?

I have a presentation on principles of constant on-time converters but might need some time or help on the other points.

You can email me at o-murray@ti.com and I can show you what I have right now.

-Orlando

0 Jamie Tseng over 4 years ago in reply to Andy Chen

TI__Intellectual 2405 points

Hi Andy,

The application is PoE Switch.

They are using RT7294 and RT7295 before.

Here are the spec:

Vin=3.3V

Output Voltage=1.2/1.5/1.8/3.3V

Output Current=1~3A

The customer want to know when it comes to COT compensation, what parameters have to check for the stability. (Jitter or Bode plot?)

And also the question I listed before.

Thanks and best regards,

Jamie

0 Jamie Tseng over 4 years ago in reply to Orlando Murray

TI__Intellectual 2405 points

Hi Orlando,

Hope everything going great to you, too!

The customer want the answer before next Friday.

I'll mail you.

Thanks and best regards,

Jamie

0 Andy Chen over 4 years ago in reply to Jamie Tseng

TI__Mastermind 33625 points

Hi Jamie,

This a big topic to cover, Let's talk about in email with Orlando or me.

I will close this thread first.

B R

Andy

Power management

Power management forum

D-cap family and COT