Description
The AAT3151B is a low noise, constant frequency charge pump DC/DC converter that uses a dual mode load switch (1X) and fractional (1.5X) charge pump conversion to maximize efficiency for white LED applications.
Features
- 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 (50µA) for Low-Current Mode.
- Dual Mode 1X and 1.5X Charge Pump for Maximum Efficiency and VF Coverage.
- Drives Four Channels of LEDs.
- No Inductors, Low Noise Operation.
- 1MHz Constant Switching Frequency.
- Small.
AAT3151B Datasheet
