Maxim Integrated MAX7624ESE+ Step-Up DC-DC Converter

The MAX7624ESE+ from Maxim Integrated is a high-efficiency, voltage-mode, step-up DC-DC converter designed to provide a reliable power solution for applications requiring a compact, high-voltage output from a lower voltage input. This versatile component is well-suited for a wide range of products, including portable devices, LCD bias supplies, and other electronic equipment that necessitates a step-up power conversion.

The device operates with an input voltage range from 2.7V to 16.5V, making it compatible with various power sources, including single-cell batteries. It can deliver an adjustable output voltage up to 40V, which is set by an external resistor divider, allowing designers to tailor the output to meet specific requirements. The MAX7624ESE+ is capable of supplying up to 125mA output current, depending on input voltage and external components.

Featuring a fixed 125kHz switching frequency, the MAX7624ESE+ minimizes external component size and helps maintain a balance between efficiency and component cost. Its high-frequency operation allows the use of small, low-profile inductors and ceramic capacitors, which is beneficial for space-constrained applications. Additionally, the device offers a low quiescent current, contributing to energy-saving operation in battery-powered devices.

The MAX7624ESE+ incorporates various protection features to ensure reliable operation under adverse conditions. These include thermal shutdown, frequency foldback, and current limit protection. The thermal shutdown feature protects the device from overheating, while frequency foldback helps prevent overcurrent conditions during startup or short-circuit events. The current limit protection safeguards the device and the load from excessive current draw.

Available in a 16-pin narrow SO package, the MAX7624ESE+ is designed for easy integration into existing and new designs. Its small footprint and surface-mount package make it ideal for space-constrained applications where board real estate is at a premium.

With its combination of high efficiency, adjustable output voltage, and protective features, the MAX7624ESE+ from Maxim Integrated is an excellent choice for designers looking to implement a reliable and versatile step-up DC-DC conversion solution.