Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9237C40DMR-G

The XC9237C40DMR-G is a synchronous step-down DC/DC converter designed for high efficiency and stable power supply applications. It features 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. The device operates within an input voltage range of 2.0V to 6.0V and can deliver an output current of up to 600mA. The output voltage can be set externally from 0.9V to 6.0V or can be fixed at 4.0V, depending on the configuration. This regulator supports two oscillation frequencies, 1.2MHz and 3.0MHz, and offers multiple control methods, including manual PWM control and automatic PWM/PFM switching. It incorporates features such as a soft start function, current limiting, and an under-voltage lockout (UVLO) function to enhance reliability. The XC9237C40DMR-G is suitable for various applications, including mobile devices, Bluetooth devices, and digital cameras. It is available in multiple package options, including SOT-25 and USP-6C, and complies with EU RoHS standards.