LMR51430: Efficiency plots on datasheet for LMR51430/LMR51420 may be incorrect

Matt Calvo

Part Number: LMR51430
Other Parts Discussed in Thread: LMR51420,

Hey Buck Regulator team,

I have a customer evaluating both the LMR51430 and LMR51420 for a new design and we noticed that there may be a discrepancy between the Page 1 Efficiency vs Output Current plots for both devices on their datasheets. The coloration of the plot seems to be wrong for one of them. Can you please help to clear this up and let us know which is correct?

LMR51420 Efficiency Plot:

LMR51430 Efficiency Plot:

Best regards,

Matt Calvo

over 1 year ago

0 Youhao Xi over 1 year ago

TI__Guru 68655 points

Hi Matt,

Thank you for the feedback. I took a look and I think the first graph is right. The one for LMR51430 looks like swapped between the PFM and FPWM, because it is well known that the PFM would have higher efficiency than the FPWM.

I am passing this to our responsible engineers and we should update it soon.

Thanks,

Youhao

+1 Elena Gao over 1 year ago in reply to Youhao Xi

TI__Genius 13735 points

hi, Matt,

Thank you for pointing out ,we already notice this and will update in next version soon.

Elena

Power management

Power management forum

LMR51430: Efficiency plots on datasheet for LMR51430/LMR51420 may be incorrect