AAT2845 Overview
The AAT2845 is a highly integrated power solution for single-cell lithium-ion-based LCD display applications. It includes a four-channel LED backlight driver and two integrated 200mA LDOs as additional power supplies for display and camera-related chipsets. The backlight driver is a low noise, constant frequency charge pump DC/DC converter that uses a tri-mode load switch (1X), fractional (1.5X), and doubling (2X)...
AAT2845 Key Features
- ChargePump™
- Input Voltage Range: 2.7V to 5.5V Four-Channel LED Driver
- Tri-Mode Charge Pump
- Up to 20mA/Channel
- Easy Control with Single Wire Interface
- 16 Current Levels
- Four Low Current Settings Down to 50µA
- Low IQ (50µA) for Low Current Mode
- >90% Peak Efficiency Dual 200mA LDOs Automatic Soft-Start Over-Temperature Protection Available in 3x4mm TQFN34-20 Packa