The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
LTC3490 Single Cell 350mA LED Driver
FEATURES
■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
DESCRIPTIO
U APPLICATIO S
■ ■
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 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 generates 350mA of constant current with up to 4V of compliance.
LT3490 Datasheet
