AAT2856 - AAT

AAT2856 High Current Charge Pump

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 se.

Features

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• ChargePump™
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• 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 VBATTERY — Output Auto-Discharge for Fast Shutdown — Individual LDO Enable Inputs Built-In Thermal Protection Automatic Soft Start -40°C to +85°C Temperature Range TQFN44-28 Package Applications
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• Camera-Enabled Mobile Devices Digital Still Cameras Multimedia Mobil.