AAT3123A

PRODUCT DATASHEET AAT3123/23A/24 ChargePumpTM High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications 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