Maxim Integrated's MAX1760EUB: High-Efficiency, Low-IQ, Step-Up DC-DC Converter

The MAX1760EUB from Maxim Integrated is a versatile and efficient step-up DC-DC converter designed for battery-powered and low-voltage systems. This compact device is capable of delivering a stable and regulated output voltage from a lower input voltage, making it ideal for applications that require a small footprint and high efficiency.

Encased in a micro-sized, 10-pin µMAX package, the MAX1760EUB is engineered to operate from an input voltage range of 0.7V to 5.5V, which allows it to support single-cell, multi-cell, or alkaline/NiMH batteries as well as other low-voltage power sources. Its ability to start up with a mere 0.7V input and run down to 0.5V once started makes it particularly suitable for devices powered by a single cell battery.

The MAX1760EUB boasts a high switching frequency of up to 500kHz, which enables the use of small, low-cost inductors and capacitors, reducing the overall size and cost of the power supply design. Additionally, its high frequency operation allows for a rapid transient response, catering to applications that demand quick changes in power supply.

One of the key features of the MAX1760EUB is its low quiescent current (IQ), drawing only 17µA during operation and 1µA in shutdown mode. This low power consumption extends battery life, making it an excellent choice for portable devices where power efficiency is critical.

The device also includes an internal synchronous rectifier, which enhances efficiency by reducing diode losses. Furthermore, the MAX1760EUB offers a selectable pulse-skipping mode that maintains high efficiency at light loads, as well as a fixed output voltage option for simplified design.

With built-in safety features such as soft-start to limit inrush current, thermal overload protection, and a true shutdown mode that disconnects the output from the input, the MAX1760EUB ensures safe and reliable operation under various conditions.

In conclusion, the MAX1760EUB from Maxim Integrated is a high-performance, energy-efficient step-up converter that is perfect for space-constrained, battery-powered applications. Its low-power operation, high switching frequency, and safety features make it a robust solution for designers looking to optimize their power management systems.