Features

• VIN Range: 2.7V to 5.5V

• Fully Programmable Current with Single Wire

▪ 16-Step Logarithmic Scale

▪ 15/20/30mA Max Current

▪ Four Low-Current Settings Down to 50μA

▪ Low IQ (50μA) for Low-Current Mode

• Dual Mode 1X and 1.5X Charge Pump for Maximum

Efficiency and VF Coverage

• Drives Four Channels of LEDs

• No Inductors, Low Noise Operation

• 1MHz Constant Switching Frequency

• Small Application Circuit

• Built-In Thermal Protection

• Built-In Auto-Disable for Short-Circuit

• Automatic Soft Start

• IQ <1μA in Shutdown

• TDFN33-12 Package