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MP3309A - White LED Driver

General Description

The MP3309A is a WLED step-up converter for 2.7V-to-5.5V input that uses peak-current mode to regulate the LED current sensed through an external low-side resistor.

The 200mV feedback voltage and synchronous rectification reduces power loss and reduces PCB space requirements.

Key Features

  • a programmable switching frequency to optimize efficiency. It supports both analog and PWM dimming. In addition, the MP3309A has LED open protection, cycle-by-cycle current limit protection, thermal shutdown protection and over-voltage protection. MP3309A is available in QFN10 3.
  • 3mm package.

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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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The Future of Analog IC Technology MP3309A 2.7V-5.5V Input, 35V Output, Programmable Fsw, White LED Driver DESCRIPTION The MP3309A is a WLED step-up converter for 2.7V-to-5.5V input that uses peak-current mode to regulate the LED current sensed through an external low-side resistor. The 200mV feedback voltage and synchronous rectification reduces power loss and reduces PCB space requirements. To connect an external Schottky accomplishes the non-synchronous mode for heavy load to improve the thermal performance. The MP3309A features a programmable switching frequency to optimize efficiency. It supports both analog and PWM dimming. In addition, the MP3309A has LED open protection, cycle-by-cycle current limit protection, thermal shutdown protection and over-voltage protection.