TPS54340 - Input – 9-16VDC / Output - Dual , ±6VDC, 2-3A

1886332

Expert 1325 points

Other Parts Discussed in Thread: TPS54340, TPS5430

Hi,

I am looking for this kind of solution:

Input – 9-16VDC
Output – Dual , ±6VDC, 2-3A.

I believe TPS54340 can be a good solution.

Any ideas?

Thanks in advanced.

over 9 years ago

0 JohnTucker over 9 years ago

TI__Guru**** 191445 points

2-3 A total or 2-3 A each?

0 1886332 over 9 years ago in reply to JohnTucker

Expert 1325 points

2-3A Each, or as much as possible

0 JohnTucker over 9 years ago in reply to 1886332

TI__Guru**** 191445 points

For the inverting buck-boost, the current is derated by a factor of 1-D. You could theoretically use a split rail supply as shown here with the TPS54340:

But you will get less than 3 A total for both rails. Alternately you could use two TPS5430, one as a standard buck to get +6 V at 3 A and another in inverting buck-bost to get -6 V at close to 2 A.

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TPS54340 - Input – 9-16VDC / Output - Dual , ±6VDC, 2-3A