AAT3167 Overview
The AAT3167 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 AAT3167 is capable of driving five LEDs for a total of 135mA from a 2.7V to 5.5V input. The current sinks may be operated individually or in parallel for driving higher current LEDs.
AAT3167 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
