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AAT3129 - High Efficiency 1X/1.5X/2X Charge Pump

General Description

The AAT3129 is a high efficiency charge pump DC/DC converter with tri-mode load switch (1X) fractional (1.5X) and doubling (2X) conversion for color LED applications.

A single current source output provides a regulated current to drive R, G, and B LEDs via three internal switches.

Key Features

  • VIN Range: 2.7V to 5.5V.
  • Common Anode RGB LED Control.
  • 4096 Color with Single Wire Digital Control.
  • 40mA to 180mA Fixed Current Source.
  • AS2Cwire Digital Brightness Control.
  • Low Noise Constant Frequency Operation.
  • Small.

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Full PDF Text Transcription (Reference)

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DATA SHEET AAT3129 High Efficiency 1X/1.5X/2X Charge Pump for RGB Color LED Applications General Description The AAT3129 is a high efficiency charge pump DC/DC converter with tri-mode load switch (1X) fractional (1.5X) and doubling (2X) conversion for color LED applications. A single current source output provides a regulated current to drive R, G, and B LEDs via three internal switches. With a simple single wire serial bus, the RGB module can be easily controlled to display 4096 colors. Skyworks' Advanced Simple Serial Control (AS2Cwire™) serial digital input is used to enable, disable, and set the duty cycle of each internal MOSFET switch.