LMR16020: 5V Circuit design check

Dieter Lubbe

Part Number: LMR16020

I'm very new to this, and have been following the datasheet to design my first DC-DC converter. We have bucket loads of the LMR16020 lying around so thats why I'm using it.

I need 5V output to power a Pi Pico.

Does my schematic look correct?

over 1 year ago

0 Gui He over 1 year ago

TI__Mastermind 19646 points

Hi Dieter

I will take a look and reply to you later. Can you please share what's your Vin range?

Thank you

0 Dieter Lubbe over 1 year ago in reply to Gui He

Prodigy 10 points

Hi Gui,

The Vin range is 24-48V.

Thanks

0 Gui He over 1 year ago in reply to Dieter Lubbe

TI__Mastermind 19646 points

Hi Dieter

Thank you for your quick reply, I will check and get back later.

0 Gui He over 1 year ago in reply to Dieter Lubbe

TI__Mastermind 19646 points

Hi Dieter

The circuit looks good to me, except recommend adding a 2.2uF or 3.3uF Cin between Vin and Ground.(in parallel with CIN1).

Also, Just want you know that we also have Webench https://webench.ti.com/power-designer/switching-regulator/customize/133?VinMin=7&VinMax=36&O1V=5&O1I=2&base_pn=LMR16020P&AppType=None&Flavor=NA&op_TA=30&origin=pf_panel&lang_chosen=en-US&optfactor=3&Topology=Buck&flavor=NA&VoltageOption=NA and l to help design.

Thanks and best regards.

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LMR16020: 5V Circuit design check