FAN5609 Datasheet - Fairchild Semiconductor

FAN5609 LED Driver with Adaptive Charge Pump DC/DC Converter

The FAN5609 generates regulated output current from a battery with input voltage varying between 2.7V to 5.5V. Switch reconﬁguration and fractional switching techniques are utilized to achieve high efﬁciency over the entire input voltage range. A proprietary internal circuitry continuously monitors .

FAN5609 Features

* Parallel LED Driver Supports All Forward Voltages Adaptive VOUT Adjustment to the Highest Diode Voltage Internally Matched LED Current Sources No External Components Needed to Set LED Current Built-in Charge Pump has Three Modes of Operation:

FAN5609_FairchildSemiconductor.pdf