Car battery to power MP3 player

[fjpompeo]

Hi all,

I want to power my MP3(1,5Vcc X 200mA) player with my car's battery or 13,8V.

Is there a discrete regulator for this application?

Thanks in advance,

Fernando

 

[pranam77]

Hai Fernando, You may use LM317 which will regulate any voltage between 1.2 to 27 volts on the output side whereas it will accept any voltage upto 30+ on the input side. But be sure that the input voltage is greater than the required output voltage. For Schematics and more detailed you may download the attchment from "". Good luck.

 

[fjpompeo]

Very thank you pranam77!

 

[pranam77]

You are most welcome!

 

[shawan44]

degin of lm317 v(out)=1.25(1+r2/r1)+100µ*r2

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