LP8867-Q1: Request for schematic and layout review

Hi Jeffrey,

What's your input voltage range? And please close your another threads, thanks.

Hi Charles,

The input voltage range is 9V to 16V. And I'll close an another post. Please check it out and let me know.

Regards,

Hi Jeffrey,

1.Please add pull up resistor for INT pin.

2.We recommend to add 1nF capacitor from outx to GND.

3. What's your effective value of output capacitor?

Hi Charles,

Please check my answer below.

1.Please add pull up resistor for INT pin. : There is no INT pin on LP8867-Q1. Is it typo?

3. What's your effective value of output capacitor? It is 30uF (10uF x 3pcs) ceramic capacitor.

Also, please check the pcb layout.

Regards,

Hi Jeffrey,

1. The fault pin.

2. Ceramic capacitor needs to consider the dc derating.

Hi Charles,

Thanks for your quick response. I'll consider the derating of ceramic output capacitor.

Also, please check the pcb layout.

Regards,

Hi Jeffrey,

Is it possible to send the PCB layout with designator like smart PDF created by the PCB layout software. It is hard to review the layout for the current version of PDF.

Hi Charles,

I attached the PDF file for review of PCB layout as you requested. Please check it out.

LP8867-Q1 PCB Layout.pdf

Regards,

Hi Charles,

Thanks for your review. If I have additional questions, I'll ask you about that.

Regards,

Hi Jeffrey,

Thanks.