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https://www.cree.com/led-components/media/documents/XLamp_PCB_Thermal.pdf
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LED Drivers
Candidates:
http://www.ti.com/product/TPS92611-Q1 (current is a little low)http://www.ti.com/lit/ds/symlink/tps92610-q1.pdf (current is a little low)http://www.ti.com/lit/ds/symlink/tps92830-q1.pdf (has multiple outputs, probably the ideal candidatechannels, but low efficiency)