LM61435-Q1: PGOOD behavior when FB is open circuited condition

Akihiro Hirata

Expert 6100 points

Part Number: LM61435-Q1

Hello team,

Just want to make sure, When FB is open circuited condition, PGOOD becomes low?

Thank you.

Regards,

Hirata

over 2 years ago

+1 Elena Gao over 2 years ago

TI__Genius 13735 points

Hi, Hirata,

When FB open, the internal divider results in FB=0V, and open loop operation with Vout ~= VIN, the circuit would operate in open loop and lose output regulation., PGOOD=LOW

Elena

0 Akihiro Hirata over 2 years ago in reply to Elena Gao

TI__Expert 6100 points

Hi Elena-san,

Thanks for your very speedy answer. I understood.

I appreciate your support.

Regards,

Hirata

Power management

Power management forum

LM61435-Q1: PGOOD behavior when FB is open circuited condition