Features

• VIN Range: 2.7V to 5.5V

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

Efficiency

• Drives Low-VF and High-VF Type LEDs

• Up to Six 20mA Outputs (AAT3124)

• Up to Four 20mA Outputs (AAT3123/23A)

• 32-Position Logarithmic Scale with Digital Control

• Simple Serial Control (S2Cwire) Interface

• Low Noise Constant Frequency Operation

• 1MHz Switching Frequency

• Small Application Circuit

• Regulated Output Current

• Automatic Soft Start

• No Inductors

• IQ <1μA in Shutdown

• Temperature Range: -40°C to +85°C

• 12-Pin TSOPJW Package (AAT3123/23A)

• 16-Pin 4x4mm QFN and 14-Pin TSOPJW Packages

(AAT3124)