Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9258B3DCMR-G

The XC9258B3DCMR-G is a synchronous step-down DC/DC converter from Quarktwin Technology Ltd., designed for high efficiency and stable power supply applications. It features an output current capability of 1.0A and an adjustable output voltage range from 0.8V to 3.6V with an accuracy of ¬±2.0% in 0.05V increments. The device operates within an input voltage range of 2.5V to 5.5V and offers selectable oscillation frequencies of 1.2MHz or 6.0MHz to suit various applications. This regulator employs HiSAT-COT control for excellent transient response and includes automatic PWM/PFM switching control, which optimizes efficiency across different load conditions. It incorporates several protection features, including thermal shutdown, current limit, and under-voltage lockout (UVLO). The XC9258B3DCMR-G also supports a soft-start function with a typical time of 0.3ms and has a low standby current consumption of 1.0OºA or less. The product is available in SOT-25 and USP-6C packages and is compliant with EU RoHS standards. It is suitable for applications in smartphones, Bluetooth devices, portable game consoles, digital cameras, and wearable technology.