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LTC3490

Linear Technology
Part Number LTC3490
Manufacturer Linear Technology
Description Single Cell 350mA LED Driver
Published Jan 21, 2007
Detailed Description U U LTC3490 Single Cell 350mA LED Driver FEATURES ■ 350mA Constant Current Output ■ 2.8V to 4V Output Compliance ■ 1- ...
Datasheet PDF File LTC3490 PDF File

LTC3490
LTC3490

Overview
U U LTC3490 Single Cell 350mA LED Driver FEATURES ■ 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 Quiescent 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 U APPLICATIO S ■ Portable Lighting ■ Rechargeable Flashlights DESCRIPTIO The LTC®3490 provides a constant current drive for 1W LED applications.
It is a high efficiency boost converter that operate...


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