Power Supply DC/DC

Eduardo Melara

Other Parts Discussed in Thread: LMZ10503, LMZ12003, TPS84210, TPS84410, TPS84610, PTH04T240W, PTH04T220W, PTH05T210W, PTH08T250W

I am designing a single board computer and I have at least 8 different voltage levels that I must supply.

I´ll supply my board through my backplane (3v3, 5v).

I am thinking of using modular converters. What do you guys suggest?

ps: Voltages varies from 0,95V to 3v3. Currents varies from 0,3A to 16A.

over 11 years ago

0 JohnTucker over 11 years ago

TI__Guru**** 191445 points

There are many possibilites. Everything from modules to intgrated FET converters to controllers. If you are looking at modules, then you could use power quick search to match your individual requirements. There is a separate forum for modules as well where you can ask detailed questions.

0 Eduardo Melara over 11 years ago in reply to JohnTucker

Prodigy 125 points

I wanna know the most integrated solution that I can find.

Modules have advantages that caught my attention, but I wanna know if it´s worth. I have never used such converter.

0 JohnTucker over 11 years ago in reply to Eduardo Melara

TI__Guru**** 191445 points

Modules are the most integrated solution. We offer a rather complete line of them. They are pretty much a plug and play solution. You do not need to do any dc/dc converter design. The down side is they are more expensive. Let us know if you have further questions

0 Eduardo Melara over 11 years ago in reply to JohnTucker

Prodigy 125 points

Mr Tucker, you helped a lot. I just couldn't find a conversor that converts 5v into 1v8 and supply currents above 2,5A. Do you have any recomendation?

0 JohnTucker over 11 years ago in reply to Eduardo Melara

TI__Guru**** 191445 points

Power quick search returns a lot of options:

LMZ10503	LMZ10503	Step-Down (Buck) Module	3	2.95	5.5	0.8	5	7PFM	3.75 \| 1ku
TPS84320	4.5-V to 14.5-V Input, 3-A Synchronous Buck, Integrated Power Solution	Step-Down (Buck) Module	3	4.5	14.5	0.8	5.5	47B1QFN	3.75 \| 1ku
PTH04070W	3-A, 3.3/5-V Input Adjustable Switching Regulator	Step-Down (Buck) Module	3	3	5.5	0.9	3.6	5Surface Mount Module 5Through-Hole Module	4.30 \| 1ku
PTH04000W	3-A, 3.3/5-V Input Adjustable Switching Regulator with Auto-Track Sequencing	Step-Down (Buck) Module	3	3	5.5	0.9	3.6	6Surface Mount Module 6Through-Hole Module	4.50 \| 1ku
LMZ12003	LMZ12003	Step-Down (Buck) Module	3	4.5	20	0.8	6	7PFM	5.15 \| 1ku
PTH04T260W	3-A, 2.2V to 5.5V Input, Non-Isolated, Wide Output, Adjustable Power Module with TurboTrans	Step-Down (Buck) Module	3	2.2	5.5	0.69	3.6	10Surface Mount Module 10Through-Hole Module	6.25 \| 1ku
PTH04T261W	3-A, 2.2V to 5.5V Input, Ceramic Cap Version, Non-Iso, Wide Output, Adj Power Module with TurboTrans	Step-Down (Buck) Module	3	2.2	5.5	0.69	3.6	10Surface Mount Module 10Through-Hole Module	6.25 \| 1ku
PTH08T260W	3-A, 4.5V to 14V Input, Non-Isolated, Wide Output, Adjustable Power Module with TurboTrans	Step-Down (Buck) Module	3	4.5	14	0.69	5.5	10Surface Mount Module 10Through-Hole Module	6.25 \| 1ku
PTH08T261W	3-A, 4.5V to 14V Input, Ceramic Cap Version, Non-Iso, Wide Output, Adjust Power Module w/ TurboTrans	Step-Down (Buck) Module	3	4.5	14	0.7	5.5	10Surface Mount Module 10Through-Hole Module	6.25 \| 1ku
LMZ10503EXT	3A SIMPLE SWITCHER Power Module with 5.5V Maximum Input Voltage for Military and Rugged App	Step-Down (Buck) Module	3	2.95	5.5	0.8	5	7PFM	12.00 \| 1ku