Features

• VIN Range: 2.7V to 5.5V

• Fully Programmable Current with Single Wire

▪ 16-Step Logarithmic Scale

▪ 14/18/27mA Max Current

▪ Four Low-Current Settings Down to 115μA

▪ Low IQ (50μA) for Single-Channel, Low-Current

Mode

• Tri-Mode 1X, 1.5X, 2X Charge Pump for Maximum

Efficiency and VF Coverage

• Drives Up to Four LEDs

• Individual Main-Sub (3-1) Group Control

• No Inductors, Low Noise Operation

• 1MHz Constant Switching Frequency

• Small Application Circuit

• Built-In Thermal Protection

• Built-In Auto-Disable for Open Circuit

• Automatic Soft Start

• IQ <1μA in Shutdown

• TDFN33-12 Package