AAT3155 Description
The AAT3155 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 applications. The AAT3155 is capable of driving up to four channels of LEDs at 20mA per channel from a 2.7V to 5.5V input. The current sinks may be operated individually or in parallel for driving higher current LEDs.
AAT3155 Applications
- VIN Range: 2.7V to 5.5V
- Fully Programmable Current with Single Wire
