AAT2856 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.
AAT2856 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 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