• Part: AAT2868
  • Manufacturer: Advanced Analogic Technologies
  • Size: 969.94 KB
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AAT2868 Key Features

  • 2.7V to 5.5V Supply Voltage Range
  • Charge Pump for LED Driver
  • Dual Mode 1x/1.5x
  • Drives Up to 4 LEDs with up to 31mA each
  • Linear LED Output Control Options
  • Maximum LED Current Set by AS2Cwire Interface, 32 Steps
  • PWM Interface Dimming from 100% to 1% Duty Cycle with Frequency up to 100kHz
  • 0.9MHz Constant Frequency
  • Automatic Soft-Start Limits Inrush Current
  • Dual 150mA LDOs

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AAT2868 Description

The AAT2868 is a low-noise, constant-frequency charge pump DC/DC converter that uses a dual-mode load switch (1x) and fractional (1.5x) conversion to maximize efficiency for white LED Content Adaptive Brightness Control (CABC) applications. The AAT2868 is capable of driving 4 white LEDs at a total 124mA from a 2.7V to 5.5V input. The current sinks may be operated individually or in parallel for driving...

AAT2868 Applications

  • 2.7V to 5.5V Supply Voltage Range
  • Charge Pump for LED Driver