Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9237B2EC4R-G

The XC9237B2EC4R-G is a synchronous step-down DC/DC converter designed to provide a stable output voltage with high efficiency. It 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 using two resistors, or it can be fixed within the range of 0.8V to 4.0V depending on the specific configuration. This regulator features a built-in 0.42Oc P-channel MOS driver and a 0.52Oc N-channel MOS switching transistor, allowing for the use of low ESR ceramic capacitors. The device supports multiple control methods, including PWM and automatic PWM/PFM switching, which can be manually selected for optimized performance across varying load conditions. Additional features include a high-speed soft-start function, a current limiter circuit, and an under-voltage lockout (UVLO) function that disables the output when the input voltage drops below 1.4V. The XC9237B2EC4R-G is available in various packages, including SOT-25 and USP-6C, making it suitable for compact applications such as mobile devices, digital cameras, and portable gaming consoles.