WEBENCH® Tools/TPS62823: webench simulation load transient response waveform not matching with datasheet waveform

Hi Shubhangi,

I am looking into this request. I request you to give me some more time and I shall get back to you early next week. 

Regards,

Febin

Hi Shubhangi,

I tried to simulate with the same initial conditions on the datasheet for TPS62822. In this case, there is a discrepancy in the waveforms for transient response and I have forwarded the issue to the Webench team. 

Regards,

Febin

Hello Febin,

Thanks for the help. Please let me know from whom should I expected the next reply?

Actually I was looking for a DCDC with a very fast transient response to avoid voltage ripples marked in red in image below: Can you please let me know if it is practically possible to have a DCDC which will stabilize before the next current transient happens in image below. In other words, DCDC needs to have the transient response time less than 5uS.

Thanks,
Shubhangi

Hi Shubhangi,

1. I will reply to you as soon as I get an update from our Webench team. (This might take a couple of days)

2. It is possible to have 5us load transient response time in buck converters.

3. Regarding the above measurement, is it taken on TPS62822 EVM ? Could you please provide details of the setup and also provide the measuring points.

How's the transient response of the device on your application? If possible, could you please share details of the application. (Maybe please provide the layout or schematic)

Regards,

Febin

Hello Febin,

For further discussion can you please provide your official email ID?

Thanks,

Shubhangi