LTC3490 Single Cell 350mA LED Driver
FEATURES
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DESCRIPTIO
U APPLICATIO S
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350mA Constant Current Output 2.
8V to 4V Output Compliance 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 Under
voltage 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 gen...