AAT3164 Overview
The AAT3164 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 device is capable of driving up to six channels of LEDs at up to 30mA 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.
AAT3164 Key Features
- ChargePump™
- Maximizes Efficiency and LED VF Coverage
- 1MHz Constant Switching Frequency
- No Inductors, Low Noise Operation Drives Six Channels of LEDs up to 30mA/ Channel
- User-Programmable RSET Sets Maximum LED Current
- Excellent LED Channel-to-Channel Current Match Digitally Programmable LED Current with Single-Wire S2Cwire Interface
- 16 Current Levels From ILED_MAX to 50µA Low IQ (70µA) for Low Current Mode Operation True Load Disconnect in Shutdown; I
