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FAN5609 - LED Driver with Adaptive Charge Pump DC/DC Converter

General Description

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.

Key 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:.
  • Linear Regulation VIN > 4.2V.
  • 3/2 DC-DC Converter and Regulation 3.6V.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.fairchildsemi.com FAN5609 LED Driver with Adaptive Charge Pump DC/DC Converter 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: – Linear Regulation VIN > 4.2V – 3/2 DC-DC Converter and Regulation 3.6V