Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9237B29CER-G

The XC9237B29CER-G is a synchronous step-down DC/DC converter designed to provide a fixed output voltage of 2.9V with a maximum output current of 600mA. It operates within an input voltage range of 2.0V to 6.0V and 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 supports both PWM control and automatic PWM/PFM switching modes, allowing for efficient operation across varying load conditions. This regulator is optimized for high efficiency, achieving up to 92% under typical conditions. It includes features such as a soft start function, current limiting, and an under-voltage lockout (UVLO) function that disables the output when the input voltage drops below 1.4V. The XC9237B29CER-G is suitable for applications in mobile devices, smartphones, and portable electronics, and is available in multiple package options including SOT-25 and USP-6C.