LM3880MFX-1AB/NOPB

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The LM3880MFX-1AB/NOPB is a power management integrated circuit (PMIC) making part of a family of products within the ‘Power Supply Controllers, Monitors’ category. In other words, it is a software-programmable controller for power supply designs dedicated for high-end applications. It provides proprietary pulse ran modulation (PRM) which enables significant advantages in dynamic range and efficiency.

The LM3880MFX-1AB/NOPB integrates many features like system monitoring (voltage and temperature-sensing, over-voltage and over-temperature protection, real-time clock and event-based recording, internal and external fan speed control for thermal management, etc.), device frequency control, and a real-time analyzer and phase-controlled rectifier. It also provides software-programmable power management options, like power-aware monitoring, dynamic load line control, thermal and voltage margining, etc.

The LM3880MFX-1AB/NOPB contains two controller blocks with separate pulse-width modulation (PWM) controllers that operate independently of each other with a flexible power supply design. Each of these controllers can independently generate and drive two PWM outputs, allowing dynamic channel switching during system operation. It offers dynamic data and power management, optimized power sequencing and interleaving, independent over-current protection and short-circuit fault protection.

The LM3880MFX-1AB/NOPB is based on closed-loop voltage feedback architecture, which precisely regulates output voltage levels for reliable power supply design. It features a wide precision range that enables dynamic system performance, such as dynamic power device scaling, dynamic load line control and adaptive current control for optimizing the efficiency. It also includes on-board protection features such as under-voltage lockout and over-temperature protection.

In applications such as server and storage systems, the LM3880MFX-1AB/NOPB is used to optimize system-level performance through dynamic power supply design. Integrating these functionalities onto the single chip prevents issues related to component synchronization and component-level interactions between the external power management components. It also helps achieve higher levels of system performance and lower total system power consumption.

The LM3880MFX-1AB/NOPB provides a highly integrated solution for power supply design. It integrates multiple functions, such as isolation and synchronization, feedback loops, over-voltage and over-temperature protection circuitry, system monitoring and control, accurate real-time current sensing and monitoring, dynamically adjustable load line regulation, manual fan speed control, autogeneration of multiple voltage levels, and built-in sequencing. It also provides software programming of system parameters and system-level control functions.

The LM3880MFX-1AB/NOPB is an integrated circuit that provides an ideal solution for controlling and managing power supplies in high-end applications. It offers advanced power management features, such as dynamic channel switching, dynamic voltage/current scaling, and advanced pulse width modulation, that help reduce overall system power consumption while improving system performance and reliability. It also comprises a wide range of safety and protection features, such as over-voltage and over-temperature protection, and allows user-programmable parameters for a wide range of applications.

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