SND9039

Mahesh Linge

I need to understand how to configure SND 9039 LDO's in order to get out programmed voltage before connected to unprogrammed processor.

over 1 year ago

0 Nick Butts over 1 year ago

TI__Mastermind 38115 points

Hello,

I'm not familiar with SND9039 and I can't find much information online about it. Can you please elaborate on what exactly you need help with?

Thanks,

Nick

0 Mahesh Linge over 1 year ago in reply to Nick Butts

Prodigy 20 points

Here is block diagram. If I connect all configurable LDO's to processor rail, which are in default disabled. Because my power is coming out my processor doesn't boot. LDO register's are written through I2C bus. How do I solve this problem?

0 Nick Butts over 1 year ago in reply to Mahesh Linge

TI__Mastermind 38115 points

Hello,

I am trying to find the correct group to support this; even though there are LDOs integrated in this device, the LDO group does not support this device.

I hope to find the correct group by tomorrow 8/5/22. I'll update this post when I find the correct group.

Thanks,

Nick

0 Nick Butts over 1 year ago in reply to Mahesh Linge

TI__Mastermind 38115 points

Hello,

I am re-assigning this post to the responsible team.

Regards,

Nick

0 Daniel W over 1 year ago in reply to Nick Butts

TI__Genius 13216 points

Hi Mahesh,

LDOs can be controlled by I2C. LDOs not enabled by default would need to be brought up over I2C.

Thanks,

Daniel W

Power management

Power management forum

SND9039