Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9235B3DDMR-G

The XC9235B3DDMR-G is a synchronous step-down DC/DC converter capable of delivering an output current of 600mA. It operates within an input voltage range of 2.0V to 6.0V and features a fixed output voltage of 3.35V. The device incorporates a built-in P-channel MOS driver transistor with a resistance of 0.42Oc and an N-channel MOS switching transistor with a resistance of 0.52Oc, allowing for high efficiency, typically around 92%. The XC9235B3DDMR-G supports a switching frequency of either 1.2MHz or 3.0MHz, selectable to suit specific application requirements. It utilizes PWM control for stable operation and includes features such as a soft start function, current limiting, and an under-voltage lockout (UVLO) function to enhance reliability. The device is designed to work with low ESR ceramic capacitors and is available in a compact SOT-25 package. This voltage regulator is suitable for applications in mobile devices, including smartphones, Bluetooth devices, and portable gaming consoles, making it a versatile choice for engineers looking for efficient power management solutions.