AAT3131 Overview
The AAT3131 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 three of its outputs and 30mA in one of its outputs to drive LEDs from a 2.7V to 5.5V input. Outputs may be operated individually or paralleled for driving...
AAT3131 Key Features
- VIN Range: 2.7V to 5.5V
- <1.0µA of Shutdown Current
- 1MHz Switching Frequency
- White LED Backlighting
- Fully Independent Display Lighting
- Dual Mode 1X and 1.5X Charge Pump for Maximum
- Drives Low-VF and High-VF Type LEDs
- Up to Three 20mA Outputs
- Single 30mA Output
- Multi-Position Logarithmic Scale with Digital Control
AAT3131 Applications
- VIN Range: 2.7V to 5.5V
