AAT3113 Description
The AAT3113 and AAT3114 are low noise, constant frequency charge pump DC/DC converters that use fractional (1.5X) conversion to increase efficiency in white LED applications. The devices can be used to produce current levels up to 20mA for each output from a 2.7V to 5.5V input. A low external parts count (two 1μF flying capacitors and two small bypass capacitors at VIN and OUT) makes these devices ideally suited for...
AAT3113 Key Features
- AAT3113: Four Outputs
- AAT3114: Six Outputs
- 20mA Full-Scale Current
- Simple Serial Control (S2Cwire) Interface
- 32-Position Logarithmic Scale with Digital Control
- Low Noise Constant Frequency Operation
- 33% Less Input Current Than Doubler Charge Pump
- High Accuracy Brightness Matching
- Small Application Circuit
- Regulated Output Current