BUY MAX1673ESA https://www.utsource.net/itm/p/11739201.html

Description: Step-Down DC-DC Converter Features: Input Voltage Range: 2.7V to 5.5V Output Voltage Range: 0.6V to 5V Output Current: Up to 1A Switching Frequency: 1.2MHz Low Quiescent Current: 25μA Shutdown Current: 0.1μA Internal Soft-Start Internal Synchronous Rectification Thermal Shutdown Output Overvoltage Protection Available in 8-Pin SOP Package Application: The MAX1673ESA is a step-down DC-DC converter that is ideal for powering low-voltage, low-power applications such as portable electronics, cellular phones, and digital cameras. It is capable of delivering up to 1A of output current and features a wide input voltage range of 2.7V to 5.5V. The device also features an internal soft-start, internal synchronous rectification, thermal shutdown, and output overvoltage protection. The MAX1673ESA is available in an 8-pin SOP package. (For reference only)