LTC3212
RGB LED Driver and
Charge Pump
Features Description Power and Current Control for Driving RGB LEDs
в– Individually Programmable Current Sources
в– 1x or 2x Mode, Low Noise, Constant Frequency
Charge Pump
в– Single Wire Enable Control for All LEDs
в– White Mode Adjusts R, G, B Currents for White Light
в– 25mA Maximum LED Current
в– V Range: 2.7V to 5.5V
IN
в– Automatic Soft-Start, Mode Switching and Output
Disconnect in Shutdown Mode
в– Available in 12-Lead (3mm Г— 2mm) DFN Package The LTCВ®3212 is a low noise charge pump RGB LED
driver capable of driving three LEDs up to 25mA each
from a 2.7V to 5.5V input. Low external part count (one
flying capacitor, two bypass capacitors and one to three
programming resistors) makes the LTC3212 ideally suited
for small, battery-powered applications. Applications Each LED may be individually turned on or off via a single
pin interface. The current through the LEDs may be individually programmed with resistors or may share a single
programming resistor. White mode adjusts the red, green
and blue LED current ratios for a white light when all three …