Skyworks Solutions AAT3113
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. The AAT3113 provides four LED current source outputs, and the AAT3114 provides six.| Part No. | AAT3113 |
|---|---|
| Datasheet | AAT3113 Download |
| Manufacturer |  Skyworks Solutions |
| Description | High Efficiency 1.5X Fractional Charge Pumps |
| Buy | Stock & Price |
APPLICATIONS
GENERAL DESCRIPTION
A low external parts count (two 1μF flying capacitors and two small bypass capacitors at VIN and OUT) makes these devices ideally suited for small, battery-powered applications. Skyworks' Simple Serial Control (S2Cwire™) interface is used to enable, disable, and set the LED drive current for 32-level logarithmic scale LED brightness control. AAT3113 and AAT3114 devices have a thermal management system for protection in the event of a short-circuit condition on any of the output pins. Built-in soft-start circuitry prevents excessive inrush current during startup. A high switching frequency enables the use of small external capacitors. A low-current shutdown feature disconnects the load from VIN and reduces quiescent current to less than 1μA. The AAT3113 is available in a Pb-free 12-pin TSOPJW package, and the AAT3114 is available in a Pb-free 16-pin QFN package.FEATURES
● AAT3113: Four Outputs● AAT3114: Six Outputs
● 20mA Full-Scale Current
● Simple Se...
