DESCRIPTION
LT®3466 is a dual full function step-up DC/DC converter specifically designed to drive up to 20 White LEDs (10 in series per converter) with a constant current. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors and expensive factory calibration.

FEATURES
■ Drives Up to 20 White LEDs (10 in Series per Converter) from a 3.6V Supply
■ Two Independent Step-Up Converters Capable of Driving Asymmetric LED Strings
■ Independent Dimming and Shutdown Control of the Two LED Strings
■ Internal Schottky Diodes
■ Internal Soft-Start Eliminates Inrush Current
■ Open LED Protection (42V Max VOUT)
■ Fixed Frequency Operation Up to 2MHz
■ 81% Efficiency Driving 16 White LEDs at 15mA (Eight per Driver) from a 3.6V Supply
■ Wide Input Voltage Range: 2.7V to 24V
■ Tiny (3mm × 3mm) 10-Lead DFN Package

APPLICATIONS
■ Main/Sub Displays
■ Digital Cameras, Sub-Notebook PCs
■ PDAs, Handheld Computers
■ Automotive