LM5165: LM5165YQDGSTQ1

Seungho Yu

Part Number: LM5165

Dear,

I'm using the chip LM5165YQDGSTQ1 model, and designing the PCB with a guide of the datasheet.

In LM5165 datasheet, section 8.2.2 is showing the PFM converter at 3.3V, 50mA. Then I found that PGOOD, HYS, SS pins are not connected at all.

Is it okay to just let them open?

Thanks.

Regards,

Seungho Yu

0 Andy Chen over 5 years ago

Hi Seungho,

SS pin open for default 900us soft start time,

HYS pin open for Enable by VIN or EN default UVLO.

So PGOOD, HYS, SS pins can be left open.

B R
Andy

0 Daniel Li14 over 5 years ago

Hi Seungho:

pls see the PIN descritpion , it is ok to left PGOOD and SS open, you can also refer EVM user guide.

0 Seungho Yu over 5 years ago in reply to Daniel Li14

Thank you for your help.

Your advice was very helpful, I hope it will work.

Thank you.

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