60V, Synchronous Step-Down High Current LED Driver

June 27, 2013 // By Hua (Walker) Bai, Linear

 The LT®3763 is a 60V synchronous, step-down DC/DC controller designed to accurately regulate LED current at up to 20A with fast PWM dimming.

High power LEDs are now used in DLP projectors, surgical equipment, stage lighting, automotive lighting and other applications traditionally served by high intensity bulbs. To meet the light output requirements of these applications, high power LEDs are often used in series. The problem is that several series-connected LEDs require a high voltage LED driver circuit. LED driver design is further complicated by applications that require fast LED current response to PWM dimming signals.
Linear Technology, DC/DC converter, LED driver, synchronous, 60 V, Step down converter