White-LED driver powers up to 10 LEDs

The LT3593 constant-current white-LED driver features a unique high-side LED current-sense topology that enables the LED cathode to be connected directly to ground, creating a single-wire current source. The part is designed to drive up to 10 white LEDs from a single Li-ion cell at efficiencies over 80%.

Housed in a 6-lead DFN or ThinSOT package, the driver operates from an input voltage from 2.7 to 5.5 V and features a constant switching frequency of 1 MHz. Additional features include output disconnect in shutdown, open LED protection, a 3-μA shutdown current, and a ±5% reference accuracy. A single digital control pin enables set-and-forget LED dimming with ratios as high as 32:1. (From $1.40 ea/1,000 — available now.)

Linear Technology , Milpitas , CA
Literature 800-4-LINEAR
http://www.linear.com