Product Overview: MAX668EUB from Maxim Integrated

The MAX668EUB from Maxim Integrated is a high-performance, pulse-width modulated (PWM), current-mode controller designed for DC-DC conversion applications. This compact, efficient device is tailored for a variety of power supply constructions, including boost, SEPIC (Single-Ended Primary-Inductor Converter), and isolated flyback topologies.

Key Features

• Versatile Voltage Range: The MAX668EUB operates from a 1.8V to 28V input voltage range, making it suitable for applications powered from either a single cell, multiple cells, or fixed 3.3V, 5V, and 12V power rails.
• Adjustable Switching Frequency: Users can set the switching frequency anywhere from 100kHz to 500kHz, which allows for a flexible trade-off between efficiency and external component size.
• High Efficiency: Its high efficiency is achieved through an adaptive non-overlapping gate driver and the use of external N-Channel MOSFETs, which reduces power loss.
• Enhanced Control: The current-mode control provides excellent line and load transient response. Additionally, it offers the benefit of cycle-by-cycle current limiting for improved protection.
• Compact Package: The MAX668EUB comes in a space-saving 10-pin µMAX package, ideal for space-constrained applications.

Applications

The versatility of the MAX668EUB makes it an excellent choice for a broad range of applications. It is particularly well-suited for:

• Battery-powered equipment
• DSL modems
• Portable computers and PDAs
• DC power supply modules
• Telecommunications equipment

Design Support

Maxim Integrated provides comprehensive design support for the MAX668EUB, including detailed datasheets, application notes, and design tools. This ensures that engineers can optimize their power supply designs and bring their products to market more quickly and efficiently.

Conclusion

The MAX668EUB from Maxim Integrated stands out as a robust and versatile controller for DC-DC conversion. Its broad input voltage range, adjustable switching frequency, and compact packaging make it a highly adaptable solution for modern electronic applications that demand efficient power management.