AAT1149B Overview
The AAT1149B SwitchReg is a 2.2MHz step-down converter with an input voltage range of 2.2V to 5.5V. It is optimized to react quickly to load variations and operate with a tiny 0603 inductor that is only 1mm tall. The AAT1149B can deliver 400mA of load current while maintaining a low 45μA no load quiescent current.
AAT1149B Key Features
- Ultra-Small 0603 Inductor (Height = 1mm)
- VIN Range: 2.2V to 5.5V
- VOUT Fixed 1.8V
- 400mA Max Output Current
- Up to 98% Efficiency
- 45μA No Load Quiescent Current
- 2.2MHz Switching
