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AAT3120 Datasheet Three-Channel Charge Pump

Manufacturer: Skyworks Solutions

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General Description

The AAT3120 is a low noise, constant frequency charge pump DC/DC converter that uses fractional (1.5X) conversion to improve efficiency for white LED applications.

The device can be used to produce eight current levels up to 20mA per channel for up to three channels.

1X load switch mode is also built-in to improve efficiency at low current settings.

Overview

DATA SHEET AAT3120 Three-Channel Charge Pump for White LED Applications.

Key Features

  • VIN Range: 2.7V to 5.5V.
  • Fractional Charge Pump Mode.
  • Drives Low-VF and High-VF Type LEDs.
  • Up to Three LED Outputs.
  • Single Wire Programming.
  • Eight Regulated Current Settings.
  • Max 20mA per Channel.
  • Low Noise Constant Frequency Operation.
  • No Inductors.
  • 1MHz Switching Frequency.
  • Small.

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