LT3490 Datasheet | Linear Technology

LTC3490 Single Cell 350mA LED Driver Features - - - - - - - - - - - - DESCRIPTIO U APPLICATIO S - - 350mA Constant Current Output 2.8V to 4V Output pliance 1- or 2-Cell NiMH or Alkaline Input Synchronous Rectification: Up to 90% Efficiency Fixed Frequency Operation: 1.3MHz Low Quiescient Current: <1mA Very Low Shutdown Current: <50µA Open LED Output Limited to 4.7V VIN Range: 1V to 3.2V Dimming Control Undervoltage Lockout to Protect Batteries Low Profile (0.75mm) 3mm × 3mm Thermally Enhanced 8-Lead DD and S8 Packages The LTC®3490 provides a constant current drive for 1W LED applications. It is a high efficiency boost converter that operates from 1 or 2 NiMH or alkaline cells and...