The XCL201B331ER-G is a DCDC converter manufactured by Torex Semiconductor with Switching Voltage Regulators and 400mA Inductor micro. It has a wide input voltage range with high-level efficiency, and is ideal for applications requiring low power consumption and long battery life. The output voltage range is adjustable from Vin-2V to Vin+2V, making it suitable for applications requiring to operate at various power levels. It includes a synchronous rectification design, which achieves high efficiency even at light loads. Additionally, it has internal soft start, low EMI, over temperature protection, current limiting protection, and short-circuit protection. This converter can be used in a wide range of applications, such as a charger for small devices and portable applications.