Description
The AAT3151 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.
Features
- ChargePump™.
- 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 (40µA) for Low Current Mode Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage Drives Four Channels of LEDs Individual Main/Su.