onsemi Special Purpose Regulators FAN5232MTCX

The FAN5232MTCX is a high-efficiency DC/DC controller designed for use in LCD PCs, notebook PCs, and handheld portable instruments. It features three outputs: an adjustable synchronous buck converter capable of delivering output voltages from 5V up to 80% of the input voltage, and two linear regulators providing 3.3V and 5V outputs. The device operates within an input voltage range of 5.6V to 24V and includes a 1% internal reference precision for accurate voltage regulation. This controller employs current mode control with voltage feed-forward, ensuring fast and stable loop response across varying input and output conditions. It also incorporates features such as independent shutdown pins, power good indication, input under-voltage lockout (UVLO), and output over-voltage protection (OV). The FAN5232MTCX is packaged in a 14-pin TSSOP format, making it suitable for space-constrained applications. Engineers considering this product should note its capability to handle up to 8A output current and its thermal resistance ratings, which support reliable operation in ambient temperatures ranging from -20¬8C to 85¬8C.