LP875761-Q1: inductor selection

Sherry Liang

Part Number: LP875761-Q1

Dear team,

Below is our recommended inductor value, 0.33uH(20%) which means that max inductor is 0.33*1.2=0.396, right? If we use larger inductor, for example, 0.47uH, is there any obvious bad impact?

Thanks & Best Regards,

Sherry

over 3 years ago

0 Layne J over 3 years ago

TI__Genius 12735 points

Hi Sherry,

I have assigned your thread to the expert for this part, however he is located in the EU. Please accept a delay in his reply until tomorrow.

Best regards,

Layne J

0 Tomi Koskela over 3 years ago

TI__Genius 11020 points

Hi Sherry,

Changing the inductor value has impact on the transient performance and stability and it is not recommended to change it from the recommended 0.33uH value.

Thanks.

Regards,

Tomi Koskela

0 Sherry Liang over 3 years ago in reply to Tomi Koskela

TI__Genius 10255 points

Hi Tomi,

Thanks for your reply!

In the datasheet, the recommended value is 0.33uH(20%). What does 20% mean?

Thanks & Best Regards,

Sherry

0 Tomi Koskela over 3 years ago in reply to Sherry Liang

TI__Genius 11020 points

Hello,

It is the tolerance of the inductance as specified by Murata (+/-20%).

Thanks.

Regards,

Tomi Koskela

Power management

Power management forum

LP875761-Q1: inductor selection