Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9237B29D0R-G

The XC9237B29D0R-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 0.42Ω and an N-channel MOS switching transistor with a resistance of 0.52Ω. The device supports high efficiency, typically reaching up to 92%, and allows for the use of low ESR ceramic capacitors. This regulator can be configured for either PWM control or automatic PWM/PFM switching control, providing flexibility for various load conditions. It includes features such as a soft start function, current limiting, and an under-voltage lockout (UVLO) function that disables the driver when the input voltage drops below 1.4V. The XC9237B29D0R-G is available in multiple package options, including SOT-25, USP-6C, USP-6EL, and WLP-5-03, making it suitable for a range of applications including mobile devices, Bluetooth devices, and portable gaming consoles.