Linear Tech Intros White LED Driver up to 10 LEDs

Linear Technology announces the LT3593, a constant current white LED driver packaged in a 2mm x 2mm DFN (or ThinSOT package. Housed in 2 x 2 mm DFN or ThinSOT package, the constant-current Model LT3593 features high-side LED current sense topology that enables LED cathode to be connected directly to ground, creating single wire current source. Single digital control pin enables set-and-forget LED dimming with ratios as high as 32:1. Operating from input voltage of 2.7-5.5 V, device features 1 MHz constant switching frequency and can drive up to 10 white LEDs from single Li-Ion cell at efficiencies over 80%. The LT3593 is available from stock in a 6-lead 2mm x 2mm DFN or ThinSOT package. The pricing starts at $1.40 each for 1,000-piece quantities.