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AAT2842 - High-Current Charge Pump

General Description

The AAT2842 is a highly integrated charge pump with dual linear regulators optimized for systems operating with lithium-ion/polymer batteries.

The charge pump provides power for both white LED backlight/keypad and flash.

Key Features

  • ChargePump™.
  • The AAT2842 offers two high-performance MicroPower™ low dropout (LDO) linear regulators. A single enable input controls both regulators and each supplies up to 200mA to the load. Both LDOs consume only 85µA quiescent current, making them ideal for battery-operated.

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Datasheet Details

Part number AAT2842
Manufacturer ANALOGICTECH
File Size 647.09 KB
Description High-Current Charge Pump
Datasheet download datasheet AAT2842 Datasheet

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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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High-Current Charge Pump with S2Cwire™ Control and Dual LDO for Backlight and Flash General Description The AAT2842 is a highly integrated charge pump with dual linear regulators optimized for systems operating with lithium-ion/polymer batteries. The charge pump provides power for both white LED backlight/keypad and flash. Up to four backlight LEDs can be driven at up to 30mA each and keypad LEDs can be driven using lower currents set by the S2Cwire interface. In addition, up to four flash LEDs can be driven with up to 600mA total. Two separate S2Cwire™ (Simple Serial Control™) serial digital interfaces are used to enable, disable, and set the current to one of 16 levels for both backlight and flash LEDs.