LTM4654 Hybrid Step-Down µModule® Bus Converters

Introduction

The LTM4654 Hybrid Step-Down µModule® Bus Converters from Analog Devices Inc. are advanced power modules designed for high-efficiency DC-to-DC conversion. With the capability to deliver up to 25A of output current, these converters are ideal for a variety of demanding applications, making them a versatile choice for engineers and designers.

Part Description

The LTM4654 is a complete 300W output source/sink switching mode hybrid-topology DC-to-DC converter. It operates with input voltages ranging from 20V to 55V and is housed in a compact BGA package. This module integrates a switching controller IC, power MOSFETs, magnetics, and supporting components, which simplifies power system design and reduces the required board space. The LTM4654 features a fixed 5:1 input-to-output voltage ratio, making it particularly effective for converting high-voltage intermediate bus rails to lower voltages. Additionally, it includes robust protection features such as overvoltage, overcurrent, and thermal shutdown, ensuring reliable operation in various environments.

Applications

• Non-isolated intermediate bus power architectures
• Telecom and networking equipment
• Test and measurement devices
• Industrial automation systems
• Automotive power management

Industries

• Telecommunications
• Industrial Automation
• Automotive
• Consumer Electronics
• Test and Measurement Equipment

Usage Ideas

1. Telecom Power Supply: Design a power supply system for telecom equipment that requires efficient voltage conversion from high-voltage bus rails to lower operational voltages, utilizing the LTM4654 for its high efficiency and compact size.

2. Automotive Power Management: Create a power management module for electric vehicles that converts battery voltage to various lower voltages needed for sensors and control systems, leveraging the LTM4654's robust protection features.

3. Industrial Control Systems: Develop a compact power distribution system for industrial automation that utilizes the LTM4654 to provide stable power to multiple control units from a single high-voltage source.

Conclusion

The LTM4654 Hybrid Step-Down µModule® Bus Converters are a powerful solution for designers seeking efficient and compact power conversion. With their high output current capability, integrated design, and robust protection features, these converters are well-suited for a wide range of applications across various industries. Whether in telecom, automotive, or industrial settings, the LTM4654 offers reliability and performance that can meet the demands of modern power systems.