By STMicroelectronics 118
STMicroelectronics' ST1PS01 is a Nano-Quiescent miniaturized synchronous step-down converter able to provide up to 400 mA output current with an input voltage ranging from 1.8 V to 5.5 V. This converter is specifically designed for applications where high efficiency, PCB size, and thickness are key factors. The output voltage can be set using two digital control inputs; a VOUT from 1.8 V to 3.3 V can be dynamically selected. Thanks to the enhanced PCC (peak current control), the ST1PS01 reaches very high-efficiency conversion using just a 2.2 µH inductor and two small capacitors. Advanced design circuitry is implemented to minimize the quiescent current. The device is available in a flip-chip package.