NCP81239MNTXG

The NCP81239MNTXG from ON Semiconductor is a versatile USB Power Delivery (PD) Controller designed for synchronous buck-boost applications. It is optimized for converting battery or adapter voltage into the necessary power supply rails for systems like notebooks, tablets, and desktop computers, as well as other consumer devices utilizing USB PD standards and Type-C cables.

This controller is fully compliant with the USB Power Delivery Specification when paired with a compatible USB PD or Type-C Interface Controller. It supports dynamically controlled slew rate limited output voltage, capable of producing voltages higher or lower than the input voltage. The NCP81239 drives four NMOSFET switches, enabling both buck and boost functions essential for USB PD applications.

Key electrical specifications include a wide input voltage range from 4.5V to 32V, a dynamically programmable switching frequency from 150 kHz to 1.2 MHz, and an I2C interface for configuration. It also features real-time power good indication, controlled slew rate voltage transitioning, and support for USBPD/QC2.0/QC3.0 profiles. The device includes two independent current sensing inputs, over-temperature protection, adaptive non-overlap gate drivers, and over-voltage and over-current protection.

The NCP81239MNTXG is housed in a compact 5x5 mm QFN32 package, suitable for surface mount applications. Its typical applications span across notebooks, tablets, desktops, all-in-one systems, monitors, TVs, set-top boxes, consumer electronics, car chargers, docking stations, and power banks.