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AAT2856 - High Current Charge Pump

General Description

The AAT2856 is a highly integrated charge pump with dual linear regulators optimized for systems powered from lithium-ion/polymer batteries.

The charge pump provides power for white LED backlight.

Six backlight LEDs can be driven at up to 30mA.

Key Features

  • ChargePump™.
  • Input Voltage Range: 2.7V to 5.5V Tri-Mode Charge Pump:.
  • Drives up to Six Backlight LEDs.
  • 32 Programmable Backlight Current Settings Ranging from 115µA to 30mA.
  • 2MHz Switching Frequency Two Linear Regulators:.
  • 200mA Output Current.
  • 200mV Dropout Voltage.
  • Output Voltage Adjustable from 1.2V to.

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Datasheet Details

Part number AAT2856
Manufacturer AAT
File Size 514.85 KB
Description High Current Charge Pump
Datasheet download datasheet AAT2856 Datasheet

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Other Datasheets by AAT

Part Number Description
AAT2801 Multi-Mode Charge Pump
AAT2803 Six-Channel White LED Backlight Charge Pump
AAT2805 Dual High Efficiency Charge Pump
AAT2820 Triple-Output Charge Pump Regulator
AAT2315 Step-Down Converter

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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AAT2856 High Current Charge Pump with Dual LDO for BacklightApplications General Description The AAT2856 is a highly integrated charge pump with dual linear regulators optimized for systems powered from lithium-ion/polymer batteries. The charge pump provides power for white LED backlight. Six backlight LEDs can be driven at up to 30mA. AnalogicTech's AS2Cwire™ (Advanced Simple Serial Control™) single-wire interface is used to enable, disable, and set the current to one of 32 levels for the backlight. Backlight current matching is 1% for uniform display brightness. The AAT2856 offers two high-performance lownoise MicroPower™ low dropout (LDO) linear regulators. Both regulators use individual enable inputs and each will supply up to 200mA load current.