AAT3166 Description
The AAT3166 is a low noise, constant frequency charge pump DC/DC converter that uses a trimode load switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency for white LED applications. The AAT3166 is capable of driving four LEDs for a total of 108mA from a 2.7V to 5.5V input. The current sinks may be operated individually or in parallel for driving higher-current LEDs.
AAT3166 Key Features
- ChargePump™
- VIN Range: 2.7V to 5.5V Fully Programmable Current with Single Wire
- 16-Step Logarithmic Scale
- 14/18/27mA Max Current
- Four Low-Current Settings Down to 115µA