The CM9330 is a high frequency, three-channel inductor-based PWM boost regulator specifically designed for constant current white LED drive applications. With a maximum 140mA/19V output capability, the circuit can drive up to 15 WLEDs (5 series x 3 parallel) allowing up to 35 mA per channel. With a typical input voltage range from 2.7V to 6.0V, it can be operated from a single cell Li-Ion battery.