AAT3132 Description
The AAT3132/32A is a low noise, constant frequency charge pump DC/DC converter that uses 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 up to 25 or 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 higher-current LEDs.
AAT3132 Key Features
- VIN Range: 2.7V to 5.5V
- <1.0µA of Shutdown Current
- 1MHz Switching Frequency
- White LED Backlighting
- Fully Independent Display Lighting
- Drives Low-VF and High-VF Type LEDs
- Up to Three 20mA Outputs
- Single 25mA Output (AAT3132-1)
- Single 30mA Output (AAT3132/32A)
- Multi-Position Logarithmic Scale with Digital Control
AAT3132 Applications
- VIN Range: 2.7V to 5.5V