BUY RT9979GQW https://www.utsource.net/itm/p/1908194.html

Description: RT9979GQW is a high efficiency, low noise, and low quiescent current buck-boost converter. Features: Input Voltage Range: 2.5V to 5.5V Output Voltage Range: 0.8V to 5.5V Output Current: 2A Switching Frequency: 2.2MHz Low Quiescent Current: <10μA High Efficiency: Up to 95% Low Output Ripple: <30mV Over-Temperature Protection Over-Current Protection Short-Circuit Protection Thermal Shutdown Soft-Start Enable/Disable Function RoHS Compliant Application: RT9979GQW is suitable for applications such as mobile phones, digital cameras, portable media players, and other portable devices that require a wide input voltage range and high efficiency. (For reference only)