Description

5-LED Main/Sub Display Driver with Dual LDO Features: Low Noise Charge Pump Provides High Efficiency with Automatic Mode Switching Multimode Operation: 1x, 1.5x, 2x Full-Scale Current Set Resistor Up to 125mA Total LED Current Single Wire Enable/Brightness Control for Main and Sub Display LEDs 32:1 Linear LED Brightness Control Dual 200mA Linear Regulators Four 25mA Low Dropout Main LED Current Sources One 25mA Low Dropout Sub LED Current Source Low Noise Constant Frequency Operation Low Shutdown Current: 3µA Internal Soft-Start Limits Inrush Current During Start-Up and Mode Switching Open/Short LED Protection No Inductors 20-Lead 3mm x 3mm QFN Package