The MAX668EUB+ is a high-performance, pulse-width modulated (PWM), step-up DC-DC controller designed by Maxim Integrated. This compact and efficient device is ideal for voltage boosting applications and is capable of generating output voltages up to 28V from a wide range of input voltages (from 1.8V to 28V). It is particularly well-suited for portable devices, due to its small µMAX package and high level of integration which minimizes the external component count.

Key Features

• Adjustable Output: The MAX668EUB+ provides an adjustable output voltage, which can be set using external resistors. This flexibility allows it to cater to a variety of applications and devices that require different voltage levels.
• High Efficiency: With its PWM operation, this controller offers high efficiency across a wide range of load conditions, which is essential for maximizing battery life in portable applications.
• Low Quiescent Current: Its low quiescent current helps in reducing the standby power consumption, making it an ideal choice for battery-powered devices.
• Frequency Synchronization: The device can be synchronized to an external clock, allowing for reduced electromagnetic interference (EMI) and noise, which is critical in sensitive electronic equipment.
• Thermal Protection: The MAX668EUB+ includes thermal shutdown protection, ensuring the device and the system it is part of remain protected from overheating.
• Soft-Start Capability: The built-in soft-start feature reduces inrush current during startup, which minimizes stress on the input power source and other components in the power supply.

Applications

The versatility of the MAX668EUB+ makes it suitable for a wide range of applications, including but not limited to:

• Portable Electronics
• LCD Bias Supplies
• Digital Cameras
• DSL Modems
• PDAs and Smartphones

Overall, the MAX668EUB+ from Maxim Integrated is a robust and reliable choice for designers looking to implement an efficient voltage boost solution in their electronic products. Its combination of features, including adjustable output, high efficiency, and compact size, make it a versatile component that can meet the demands of a broad spectrum of power management applications.