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Is it possible to use TPS82130 with an inverting topology?

rita pereira

Prodigy 40 points

Other Parts Discussed in Thread: TPS82130, TPS62130, TPS7A8300

I would like to know if it is possible to use TPS82130 with an inverting topology. Although the parametic table at TI webpage states this feature the TPS82130 datasheet doesn't mention this feature

over 7 years ago

0 Chris Glaser over 7 years ago

TI__Guru*** 143360 points

Yes, it can be used this way. You would follow the same design procedure as for the discrete IC, TPS62130: www.ti.com/.../slva469c.pdf

What Vin, Vout, Iout do you need?

0 rita pereira over 7 years ago in reply to Chris Glaser

Prodigy 40 points

Thank You very much for your reply!

Vin=12 V

Vout = -3.3V

Iout=1 A

0 rita pereira over 7 years ago in reply to rita pereira

Prodigy 40 points

And I was thinking of doing it as I also have the TPS82130 for having 3.3V and 2.3 V in my design, but I was not confident. Now I am.

0 Chris Glaser over 7 years ago in reply to rita pereira

TI__Guru*** 143360 points

Yep, it can work for that. Are you biasing some sort of amplifier with +/-3.3V?

0 rita pereira over 7 years ago in reply to Chris Glaser

Prodigy 40 points

I'm biasing my amplifier with +-2.5V for that part I'm using the TPS7A8300 for 2.5 V an the TPS7A3301 for -2.5 V. My board is supplied with 12 V