AAT3142 Overview
The AAT3142 is a low noise, constant frequency charge pump DC/DC converter that uses a tri-mode load switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency for white LED applications. The device produces current levels up to 30mA on each of its three current source outputs to drive various arrangements of LEDs from a 2.7V to 5.5V input. Outputs may be operated individually or in parallel...
AAT3142 Key Features
- VIN Range: 2.7V to 5.5V
- Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum
- Drives Low-VF and High-VF Type LEDs
- Up to Three 30mA Outputs
- 32-Position Logarithmic Scale with Digital Control
- Low Noise Constant Frequency Operation
- 1MHz Switching Frequency
- Small Application Circuit
- Regulated Output Current
- Automatic Soft Start
AAT3142 Applications
- VIN Range: 2.7V to 5.5V
- Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum
