Product Overview: LTM4678IY by Analog Devices Inc.

The LTM4678IY is a dual 25A or single 50A step-down µModule® (micro module) DC/DC regulator featuring remote configurability and telemetry-monitoring of power management parameters over PMBus—an open standard I2C-based digital interface protocol. This advanced product from Analog Devices Inc. is designed to efficiently regulate power in a compact, system-level solution for demanding applications such as data communications, telecommunications, and network storage systems.

Key Features

• High Efficiency: With its advanced design, the LTM4678IY offers high efficiency and power density, which is essential for modern electronic systems where space and thermal management are critical.
• Dual 25A or Single 50A Output: The module can be configured to provide two 25A outputs or a single 50A output, providing flexible power solutions tailored to various applications.
• Remote Configurability and Monitoring: The LTM4678IY supports PMBus for remote control of power parameters, including output voltage, margining, and power-on sequencing. Telemetry functions allow for real-time monitoring of temperature, current, voltage, and fault status, enabling predictive and active system management.
• Integrated Design: This µModule regulator integrates DC/DC controllers, power transistors, inductors, and support components into a single package, simplifying design and reducing footprint.
• Wide Input Voltage Range: The device operates over a wide input voltage range of 4.5V to 17V, accommodating a variety of power sources and bus voltages.
• Advanced Packaging: The LTM4678IY is packaged in a compact over-molded Ball Grid Array (BGA) package with efficient heat dissipation and minimal lead inductance for improved high-frequency performance.

Applications

The versatility and robust feature set of the LTM4678IY make it an ideal choice for a range of applications, including:

• High-density distributed power systems
• Telecommunications infrastructure
• Industrial systems
• Datacom and telecom switches/routers
• Advanced computing and storage systems

With its combination of integration, performance, and configurability, the LTM4678IY from Analog Devices Inc. represents a state-of-the-art solution for modern power management challenges.