+5V to -90V (5mA) dc-dc converter

Daniel Waleniak

Other Parts Discussed in Thread: LM5163

Dear Team,

My customer is looking for a non-automotive +5V to -90V (5mA) dc-dc converter for a laser driver.

What would be the best solution in our portfolio for this voltage and current?

Thanks!

Daniel

0 Andy Chen over 4 years ago

Hi Daniel,

Does it require isolation between 5V and -90V?

B R

Andy

0 Daniel Waleniak over 4 years ago in reply to Andy Chen

Hi Andy,

At the moment, we do not have this detail, but I did ask. Could you give me options with and without isolation?

Thanks,

Daniel

0 Daniel Waleniak over 4 years ago in reply to Daniel Waleniak

Dear Team,

Can I please have an update on recommendations from TI for this spec?

Kind regards,

Daniel

+1 Marshall_Beck over 4 years ago in reply to Daniel Waleniak

Hello Daniel,

You will need 100V.

LM5163 should work.

See IBB appnote below.

Power management forum