Leading Edge Peak Efficiency and Tight Current Mat

Fairchild Semiconductor (NYSE: FCS) announces the FAN5607 constant current parallel LED driver. This flexible device provides analog and/or PWM brightness control for LCD backlighting in ultra-portable applications. The FAN5607 has a three-mode charge pump and reaches industry-leading, 93%, peak efficiency. Internal auto-sense circuitry maintains high efficiency, even when driving less than a maximum of four LEDs, and ensures very tight current matching over the full range of the LED’s current. In addition to providing very high peak efficiency, the internal circuitry of the FAN5607 saves space and simplifies designs when compared to competitive parts that require an external control signal to maintain efficiency when driving less than 4 LEDs. To further reduce space in handheld designs, the FAN5607 is offered in one of the smallest packages available in the industry, a 4x4 MLP (Molded Leadless Package).

Price US$ 0.90

More here:

http://www.fairchildsemi.com/news/2004/0409/fan5607.html