Author Topic: Looking for 12V@10A dc-dc converter from 14.8V @10A battery  (Read 1219 times)

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Offline muthukural001Topic starter

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Hello,

For one of my project, I need to convert 14.8V @10A capacity battery to 12V @ 10A...The 14.8V battery source 's cutoff voltage is 12.8V. So, the dc-dc will be used should give 12V output even when the input is 12.8V.

Do anyone crossed the regulator that do the above?...Please suggest...

Thanks,

Muthu
 

Online bdunham7

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Re: Looking for 12V@10A dc-dc converter from 14.8V @10A battery
« Reply #1 on: July 20, 2019, 04:56:28 pm »
Unless you need isolation or have some other reason, you may just want to use a low-dropout linear regulator instead of a DC-DC or buck converter.  At 14.8 volts your linear regulator will be 81% efficient, at 12.8 volts it will be 93%.  That's going to be as good or better than most switching converters.

You could use 5 of these LDO linear regulators in parallel, each with a 0.1R or 0.15R resistor in series on the input side.

https://www.mouser.com/ProductDetail/Microchip-Technology-Micrel/MIC29300-12WU-TR?qs=U6T8BxXiZAUm3rpKH4l03A%3D%3D

If you need isolation or want a switching converter for some reason, they do have this:

https://www.mouser.com/datasheet/2/281/uwe-100-120-35373.pdf
« Last Edit: July 20, 2019, 05:01:26 pm by bdunham7 »
A 3.5 digit 4.5 digit 5 digit 5.5 digit 6.5 digit 7.5 digit DMM is good enough for most people.
 

Offline Simon

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