MP4248 Buck-Boost Converters: A Comprehensive Overview

Introduction

The MP4248 Buck-Boost Converter from Monolithic Power Systems (MPS) is a versatile power management solution designed specifically for USB power delivery applications. With its compact design and high efficiency, this converter is ideal for a range of electronic devices requiring reliable power conversion.

Part Description

The MP4248 is a buck-boost converter that integrates low-side MOSFETs, allowing it to achieve a peak output power of up to 140W. It operates within a wide input voltage range of 3.6V to 36V and provides an output voltage range of 1V to 36V with 1% accuracy. The device features I2C configurability, enabling users to customize its functionality according to their specific needs. Additionally, it includes various fault protection mechanisms such as constant current limiting, output over-voltage protection, and thermal shutdown, ensuring safe and reliable operation. The compact QFN-20 package (3mm x 5mm) makes it suitable for space-constrained applications.

Applications

• USB Type-C® and USB Power Delivery (PD)
• USB Type-C and USB Type-A communication interfaces
• Car chargers
• USB Type-C PD monitors and docking stations
• Wireless charging systems

Industries

• Consumer electronics
• Automotive
• Telecommunications
• Industrial automation
• Medical devices

Usage Ideas

1. USB Power Delivery Hub: Create a USB PD hub that can charge multiple devices simultaneously while providing power management features such as over-voltage protection and current limiting.
2. Wireless Charging Station: Design a wireless charging station that utilizes the MP4248 to efficiently manage power delivery to various compatible devices.
3. Portable Power Bank: Develop a portable power bank that leverages the MP4248's buck-boost capabilities to provide stable power output for smartphones and tablets, regardless of their battery levels.

Conclusion

The MP4248 Buck-Boost Converter from Monolithic Power Systems is a powerful and flexible solution for modern power delivery applications. Its high efficiency, compact design, and robust protection features make it an excellent choice for a variety of industries and applications. Whether you're designing a USB PD hub, a wireless charging station, or a portable power bank, the MP4248 provides the reliability and performance needed to meet today's demanding power requirements.