The LM3404/04HV is a buck-regulator designed for driving high powered LEDs at forward currents of upto 1.0A. LED drivers often experience thermal conditions that are extreme even by the standards ofswitching converters. For example LED drivers are often placed on the same metal-core PCB (MCPCB)as the LEDs themselves. At 1.0A a single-die white LED can dissipate more than 3W. The temperatur