Torex Semiconductor, Ltd. DC DC Switching Controllers XC9504B092DR-G

The XC9504B092DR-G is a dual-channel DC/DC controller IC designed for step-up and inverting applications. It operates with a supply voltage range of 2.0V to 10.0V and features a PWM control method with selectable PWM/PFM automatic switching for efficiency across varying load conditions. The output voltage for the step-up channel can be set between 1.5V and 30V, while the inverting channel can generate negative voltages from -30V to 0V, both adjustable through external components. This controller supports a maximum output current of over 20mA for the step-up channel and -20mA for the inverting channel, making it suitable for applications such as power supplies for LCDs, portable audio systems, and multi-function power supplies. The device includes a soft-start feature to mitigate rush currents and voltage overshoot during power-up, with a fixed oscillation frequency of 180kHz, which helps reduce the size of external components. The XC9504B092DR-G is also compliant with EU RoHS standards, ensuring it is environmentally friendly.