duel rail power supply +-5 to 25v

Ultra low noise duel rail power supply +-5 to 25v for pre amp I'm using a U module by LT LTM8049 with TI ultra low noise regulators TPS range. I hope to get ripple and noise down to 4 micro volts on both negative and positive rails for low noise ultra high quality audio preamps and audio drivers. This is my first BGA 3 layer board with a ground plane in the middle layer. So far the board look very well manufactured. My only mistake I have noticed so far was to use 1.27mm pin pitch headers instead of the ussual 2.54mm but that is not really a problem

Step 1: duel rail power supply +-5 to 25v

So far waiting for LTM8049 BGA chips to solder to board. Also TI regulators in the post.

More news as soon as I solder them on.

I am hoping for approx 4 microvolts noise on both - & + rails.

I will update notes here as soon as parts arrive : )

 


Dec 02,2016
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