TPS62125 inverter efficiency

eli

Guru 13485 points

Other Parts Discussed in Thread: TPS62125, TPS62120

Hi,

For the TPS62125,Need urgently simulation for below requirements:

Vin= 6V-7.5V

Vout = - 5V (negative output)

Iout= 0.03A (30milly Amps) max

over 10 years ago

0 JohnTucker over 10 years ago

TI__Guru**** 191445 points

What kind of simulation?

0 eli over 10 years ago in reply to JohnTucker

Guru 13485 points

Hi,

Output ripples,efficiancy

0 JohnTucker over 10 years ago in reply to eli

TI__Guru**** 191445 points

TPS62125 is supported by Webench. I suggest you use that to estimate efficiency and ripple performance. There is also an EVM available.

0 Chris Glaser over 10 years ago

TI__Guru**** 151520 points

I don't believe webench currently supports the inverting topology, but the app note on using this device as an inverter is for a -5V out circuit and has the data you need. http://www.ti.com/lit/an/slva514b/slva514b.pdf

There's also the TPS62120/2 for this low output power.

0 eli over 10 years ago in reply to Chris Glaser

Guru 13485 points

The Webanch currently dont support negative design, and that why I posted this simulation request.

We know this application note, but it dosnt help for output ripple informatio

0 Chris Glaser over 10 years ago in reply to eli

TI__Guru**** 151520 points

At the end of the app note are two pictures of output ripple.

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TPS62125 inverter efficiency