Supertex Inc. (SUPX) recently reported revenues of $15.9 million in its fiscal second quarter, down 32% year over year but up 17% sequentially.  The sequential increase in revenues was driven by growth in LED driver products for lighting and backlighting, medical electronics products, and electroluminescent (EL) driver products. Orders for LED and EL driver products surged after Labor Day. The company had to rush these orders through its wafer fab and expedite them through backend assembly and test in order to meet customer demand schedules. Demand for medical ultrasound products is also beginning to rebound, as sales grew 17% sequentially.

Management added that its major customer has increased its LED TV sales estimates for 2009 and 2010 while other customers are also ramping up. Sales of LED driver products for general lighting applications have also increased. In anticipation of new cell phone launches, shipments of EL inverter products ramped