2 layer board of 1.04x1.40 inches (26.52x35.64 mm).
truzzi 3-channel, high power RGB LED driver V1.0
2 layer board of 1.04x1.4 inches (27x36mm). $7.30 for three.
C1, C2, C3: 22uF tantalum capacitors (DigiKey part number: 399-3781-1-ND)
D1, D2, D3; Schottky diode 2A SMA package (DigiKey part number: B240A-FDICT-ND)
L1, L2, L3: 68uH power inductor, 0.7A (DigiKey part number: PCD2117CT-ND)
R1, R2, R3: 0.33ohm resistors, 0805 package.
4x screw terminals, 3.5mm (bought mine on Tayda Electronics)
3x PT4115 drivers.
1x 4-pin + 1x 2-pin male or female headers.