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DC/DC Converter

somaye

New Member
Hi all, I should design a DC-DC coverter with LTC3412A for a FPGA board, this could provide 2,5 V DC output from 5 V DC input (the picture is uploded). But I have no idea where to connect an AC singnal and if it is even needed?
Secondly, there is a problem with the current in the inductor, I do not know how to fix it? refer to the figure


Thanks in advance
With best regards




2022_03_23_13_29_06_DC_Regler_Spec._OneNote.png
 

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christinescoms

New Member
Hi all, I should design a DC-DC coverter with LTC3412A for a FPGA board, this could provide 2,5 V DC output from 5 V DC input (the picture is uploded). But I have no idea where to connect an AC singnal and if it is even needed?
Secondly, there is a problem with the current in the inductor, I do not know how to fix it? refer to the figure


Thanks in advance
With best regards




garage flooring phoenix View attachment 136292
Hi.

I live on a narrowboat and live off-grid. My power comes from 12v batteries.

I am trying to power my shunt-based 12v ammeter using a dc-dc converter. I bought 3 from STK on Amazon. The blurb says that they are 12v -16v input to 12v output. These would be ideal. However, when I connect one up with an input of 13.21v I get 13.56v on the output. This happens with all three converters. Am I doing something wrong?
 

danadak

Well-Known Member
Most Helpful Member
Does the converter you bought have a minimum load requirement to stay in regulation ?

Also does it have a minimum V delta in to out to stay in regulation ? eg, you input V too low ?


Regards, Dana.
 

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