AAT3134 Overview
The AAT3134 is a low noise, constant frequency charge pump DC/DC converter that uses a dual mode load switch (1X) and fractional (1.5X) conversion to maximize efficiency for white LED applications. The device can be used to produce current levels up to 20mA in each of its six outputs to drive LEDs from a 2.7V to 5.5V input. Outputs may be operated individually or paralleled for driving higher-current LEDs.
AAT3134 Key Features
- VIN Range: 2.7V to 5.5V
- <1.0µA of Shutdown
- 1MHz Switching Frequency
- Fully Independent Display Lighting
- Dual Mode 1X and 1.5X Charge Pump for Maximum
- Drives Low-VF and High-VF Type LEDs
- Up to Six 20mA Outputs
- Multi-Position Brightness Scale with Digital Control
- Low Noise Constant Frequency Operation
- Small Application Circuit
AAT3134 Applications
- VIN Range: 2.7V to 5.5V