AAT3175 Overview
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. The AAT3175 is capable of driving up to three flash LEDs at 300mA total current from a 2.7V to 5.5V input. A low external parts count (two 1µF flying capacitors and two small 1µF capacitors at VIN and...
AAT3175 Key Features
- ChargePump™
- 16 Logarithmic Current Levels Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage Drives 3-in-1
- 0.5% Current Matching No Inductors, Low Noise Operation 1MHz Constant Switching Frequency Small Application Circuit Buil