DIYINHK TPS7A47-Based Dual Power Supply
Just received the dual PS board from DIYINHK. It is based on the ultra low noise TPS7A47 regulator [link].
The implementation is an improvement over the TI evaluation board [link]. Comparing it with the TI board, one can see that it has a AC/DC rectification section enabling the board to take AC input. The board also keeps all the jumper settings to adjust the output voltage.
Here is a photo of the included smoothing capacitor:
NOISE REDUCTION CAPACITOR
This is an improvement over the evaluation board. The included capacitor is a film-type capacitor allowing better noise performance. Some experiments at diyaudio have shown positive results [link]
HEAT SINK INCLUDED
The board is rated at 1 amp with the included heat sink
This dual PS board costs $50 or $25 per channel. Compared with the TI evaluation board which can be purchased for $20 (itself a great deal) you get AC/DC rectification, improved noise reduction filtering, heat sink for higher power capability and installation hardware. This makes it an even better deal that the TI evaluation board.