Re: [time-nuts] Low noise power supplies for time nuts circuitry - 40μV Adjustable Voltage Regulator Board

2011-11-24 Thread Tim
Hi All , I find it interesting that this subject came up just as I was looking into cleaning up some of my supplies that power my RB's. Anyway I just bought two of these to play with http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItemitem=130605436528 and they're based on this device...

Re: [time-nuts] Low noise power supplies for time nuts circuitry - 40μV Adjustable Voltage Regulator Board

2011-11-24 Thread gary
The LTC datasheet crows about low current in dropout. Yeah, it's worth crowing about since not all chip use what is called a sat catcher circuit. High current in dropout with PNP pass devices can be a problem. I've seen Micrel regulators that are horrible in dropout. The sat catcher is yet