NEED DC to DC Converter

[sma]

Hi,

Please help with schematic or your diy kit for dc -dc converter.

i need input 12v (9-15 volt)
output:+/0/- 15volt @100mA or bigger

I need very low noise DC-DC converter,because this for car preamp application.i already test some DC-Dc converter from mouser but still found the sound is not clean...🙂please advice

 

[paulb]

Take a look at this one:
http://sound.westhost.com/project69.htm

 

[Alcaid]

Have anyone tried MAX742?

http://pdfserv.maxim-ic.com/en/ds/MAX742.pdf

Schematics are in the data sheet. Just need to regulate the car's voltage down to 5V. Looks very easy, but I've got no idea how much noise the switch-mode would make. 🙁

 

[sma]

maybe who already succes made low noise dc-dc converter,i interest for purchase....