National Semiconductor creates energy-efficient analog and mixed-signal semiconductors. Its PowerWise® products enable systems that consume less power, extend battery life and generate less heat. One example is our high brightness LED driver portfolio which offers the best performance-to-power ratio in the industry.

Regardless of type, size, or power, all LEDs work best when driven with a constant current since the LED color changes with small variations to driving current. National has a diverse range of constant-current regulators for driving LEDs. These drivers support buck, boost and buck-boost topology.

National’s LED drivers for both parallel and series configurations come with features such as built-in current matching, high efficiencies, multiple dimming interfaces, and low total component counts.

In addition, our LED webench online simulation tool helps users to identify the appropriate drivers, select external components and perform circuit simulation.

Headquartered in Santa Clara, Calif., National reported sales of $1.89 billion for fiscal 2008 which ended May 25, 2008. Additional company and product information is available at www.national.com.