TPS74401: Load regulation of New chip

Hirotsugu Kobayashi

Part Number: TPS74401

Tool/software:

Hi team,

The load regulation in the datasheet is only 1.5A on the horizontal axis, and the waveform is very similar to that of TPS742/748.
Please tell me the correct load regulation of NewChip.

8 months ago

0 Hannah Grace 8 months ago

TI__Genius 15125 points

Hello,

Thank you for your question.

We are sorry that the load regulation only includes the load regulation data up to 1.5A.

Please find the load regulation data up to 3A below:

Hope this helps!

Best,

Hannah

0 Hirotsugu Kobayashi 8 months ago in reply to Hannah Grace

Mastermind 9630 points

Hi Hannah,

Thank you, that's helpful.
What percentage of specs will the new chip have?
I've heard it will be better, but I haven't received an answer.

(+) TPS74401: New chip Load Regulation specifications - Power management forum - Power management - TI E2E support forums

0 Hannah Grace 8 months ago in reply to Hirotsugu Kobayashi

TI__Genius 15125 points

Here is the load regulation specification for this device:

0 Hirotsugu Kobayashi 8 months ago in reply to Hannah Grace

Mastermind 9630 points

50mA < Iout < 3A (new chip) 0.09%/mA

I think the denominator of the unit is a typo.

Is the load regulation three times worse with the new chip?

0 Hannah Grace 8 months ago in reply to Hirotsugu Kobayashi

TI__Genius 15125 points

Yes, this seems like an error. The load regulation is better. Sorry for the misunderstanding.

0 Hirotsugu Kobayashi 8 months ago in reply to Hannah Grace

Mastermind 9630 points

I am waiting for the data sheet to be corrected, but could you please tell me the load regulation values for the new chip?

0 Hannah Grace 8 months ago in reply to Hirotsugu Kobayashi

TI__Genius 15125 points

Vahnroy Hosear could you please help fix the datasheet error.

Best,

Hannah

0 Vahnroy Hosear 8 months ago in reply to Hirotsugu Kobayashi

TI__Expert 8173 points

Hey,

I apologize for the delay on this matter, I am looking into getting the info you requested. I will have it back to you as soon as possible.

Thanks,

Vahnroy Hosear

+1 Vahnroy Hosear 7 months ago in reply to Vahnroy Hosear

TI__Expert 8173 points

Hey,

Thank you for your patience, I have attached the load regulation values below:

0 Hirotsugu Kobayashi 7 months ago in reply to Vahnroy Hosear

Mastermind 9630 points

Thank you.

I understand that the load regulation of the new chip is worse than that of the legacy chip.