LM5158-Q1: Does this work for -48V to 5V?

Swaroopa Sajjan

Part Number: LM5158-Q1
Other Parts Discussed in Thread: LM5158, LM5156

I am using LM5158 but I just want to get the clarification whether the device works for -48V input supply.I need the output of +5V.So can I use LM5158 to meet the purpose ?

over 3 years ago

0 Swaroopa Sajjan over 3 years ago

Prodigy 10 points

Will LM5158 same circuit work for +48V input supply inorder to obtain the output of +5V?

0 Richard Fu22 over 3 years ago in reply to Swaroopa Sajjan

TI__Mastermind 31315 points

Hi Swaroopa,

Thank you for your interest in the LM5158. My colleague Elisabetta can better assist you with this. However, please keep in mind that it is Christmas holiday, so replies may be delayed.

Regards,

Richard

0 EM over 3 years ago in reply to Richard Fu22

TI__Genius 11215 points

Hi Swaroopa,

Thanks for your message. What is the current that you need in your system? In addition, I would like to point you to the existing reference designs as well at this link: https://www.ti.com/reference-designs/index.html#search?vinmin=-30

Kind regards,
EM

0 Swaroopa Sajjan over 3 years ago in reply to EM

Prodigy 10 points

The current required in my system is 1A.

0 EM over 3 years ago in reply to Swaroopa Sajjan

TI__Genius 11215 points

Hello,

Thanks for you patience, due to Christmas holiday there has been some delay. For this current I would suggest then to use the LM5156, which is very similar to the LM5158 but has an external switch.

Kind regards,

Power management

Power management forum

LM5158-Q1: Does this work for -48V to 5V?