TPS560200-Q1: Design advice

Dharmesh Joshi

Part Number: TPS560200-Q1

I aim to use the TPS560200-Q1 in design to get 3.3V max 400-450mA during peak Wifi TX, otherwise less then 100mA. My Vin will be 12V

This is my design, i have not yet done PCB layout.

I prefer to keep my BOM as universal possible, therefore, would there be any issues using the following components:

10 uF Inductor -> LQH43CN100K03

10uF Capacitor 0805 ->CL21A106KOQNNNG

This is the PCB layout

I await your reply

Thank You

over 2 years ago

0 Lishuang Zhao over 2 years ago

TI__Expert 7500 points

Hi,

We are during Labor holiday. We will feedback to you on May 6th.

Thanks,

Lishuang

0 Dharmesh Joshi over 2 years ago in reply to Lishuang Zhao

Expert 1785 points

Ok Thank You

We have also added a DC connector to the design, so the PCB layout is updated

0 Edwin Zang over 2 years ago

TI__Expert 6425 points

Hi Joshi,

Schematic looks well. I just have a suggestion about layout. it's suggested that FB line in bottom should be placed far away with inductor to avoid couple noise.

BRs,

Edwin.

0 Dharmesh Joshi over 2 years ago in reply to Edwin Zang

Expert 1785 points

Dear Edwin

Is this better?

Is my choice of inductor(LQH43CN100K03) ok?

0 Edwin Zang over 2 years ago in reply to Dharmesh Joshi

TI__Expert 6425 points

Hi Josh,

FB line is good. In top layer, it's not suggested put ground under inductor. please remove the area which highlight by blue circle in below figure.

Inductor is no problem.

BRs,

Edwin.

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TPS560200-Q1: Design advice