DC-DC Positive & Negative Voltage Boost-Buck Converter (Output Voltage ±5VDC)

Worked well to create dual DC voltage from a single DC voltage wall adapter. Using it to power a stereo preamp board that requires both + and - DC voltages.

Needed a converter for dual power supplies. Both positive and negative voltage. This one works perfectly.

I haven't done extensive testing to find the maximum continuous/surge current points, but the XL6007 datasheet appears to indicate that it will be thermally limited, so gluing on a tiny heatsink might help if it is only occasionally shutting down. The topology looks like a pretty standard dual-output boost converter, so if you're experiencing too much noise, an extra stage of LC or RC filtering on the output could help without causing too much voltage drop or loss of regulation. An opamp circuit with decent PSRR shouldn't mind that.

Been using ATX power supplies to replace AT power supplies in legacy computers at work. Most now don't make the -5v and that's been fine just using the cable adapters until I needed to replace the PS on a computer running a frame grabber board in the PCI slot requiring -5v. Without the -5v the board wouldn't work. I bought this and used the 12v from the unused 4 pin connector coming out of the ATX PS to feed this. The instructions it can use anywhere from 3v to 18v for power and output would be slightly higher or lower depending on input voltage. The 12v made 5.6v output. Instructions said needed to use both the positive and negative output to function properly, so I just wired the output into one of the positive and negative 5v circuits of the adapter that plugs into the MB. Find a pinout of the 2 PS connectors and its pretty straight forward. All of the ATX PS's I've seen don't even have a -5v wire going into the connector but the adapter does so it's pretty easy to identify the -5v wire. There might be a simpler way to connect this, but I wanted to be able to just plug and unplug the PS later if I needed to replace so this way, I can leave the adapter in the computer and just replace the PS without any additional wiring.

The device creates plus and minus 5 VDC sources which can take a decent imbalance in currents and still be regulated. The device has been in my project and working with no problems for over 3 months. I had to put some good 4 pole filters on each output to get the 402 kHz ripple down enough so that my sensitive broadband amplifiers would not be affected. Shipping times and packing were good. Thanks

Works and seems well made. The voltages are right on.

It delivered 5.05 + VDC okay. The negative output was -5.65 VDC. Too far off to be used in Op Amp circuits.

Good specs, works as it should but too noisy for sensitive circuitry. There are less expensive better alternatives.