Maxim Integrated MAX8742EAI+T High-Efficiency, Quad-Output, Main Power-Supply Controllers for Notebook Computers

The Maxim Integrated MAX8742EAI+T is a state-of-the-art power-supply controller designed to cater to the demanding requirements of notebook computers. This highly integrated device is engineered to provide four main outputs, ensuring high efficiency and reliability for the main system power supply in portable computing applications.

The MAX8742EAI+T features a synchronous-buck controller for the CPU core, a synchronous-buck controller for the Northbridge (NB) core, a 1.5A sink/source tracking linear regulator for the CPU termination (VTT), and a 5V/3.3V always-on linear regulator. This combination of controllers and regulators makes it an ideal solution for managing the complex power demands of modern notebook architectures.

One of the key benefits of the MAX8742EAI+T is its Quick-PWM™ quick-response, constant-on-time PWM control scheme. This provides instant response to fast load-current steps, a critical feature for CPU core power supplies. With active voltage positioning to reduce power dissipation and enhance battery life, the MAX8742EAI+T ensures optimal performance for the CPU under varying load conditions.

The device offers high flexibility with adjustable core output voltages and a fixed 5V/3.3V linear regulator output. It also includes a power-good (PGOOD) output to provide a system-ready signal once all outputs are within regulation. Additionally, the MAX8742EAI+T is equipped with a range of protection features, including overvoltage protection (OVP) and undervoltage protection (UVP), which safeguard the system against abnormal voltage conditions.

Maxim Integrated has packaged the MAX8742EAI+T in a space-saving 28-pin SSOP package, making it suitable for the compact layouts of notebook motherboards. The device operates over the extended -40°C to +85°C temperature range, ensuring reliable performance in diverse operating environments.

With its combination of efficiency, integration, and protection features, the MAX8742EAI+T is an excellent choice for designers looking to optimize power management in next-generation notebook computers.