Description
The AAT3175 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 flash applications.
Features
- ChargePump™
VIN Range: 2.7V to 5.5V Up to 300mA Total Flash Current Fully Programmable Current with Single Wire.
- 16 Logarithmic Current Levels Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage Drives 3-in-1 or 2-in-1 Flash LEDs.
- 0.5% Current Matching No Inductors, Low Noise Operation 1MHz Constant Switching Frequency Small Applicat.