MAX1761EUP - High-Efficiency, Low-IQ, Step-Up DC-DC Converter

The MAX1761EUP from Maxim Integrated is a versatile, high-efficiency, low quiescent current (IQ) step-up DC-DC converter that is ideal for battery-powered applications. Designed to operate from a supply voltage as low as 0.7V, this converter is capable of delivering an adjustable output voltage ranging from 2.0V to 5.5V, making it suitable for a wide array of portable devices.

This efficient power solution is housed in a compact TSSOP-20 package and incorporates a synchronous-rectified pulse-width modulation (PWM) topology that enhances efficiency, especially at light loads. The MAX1761EUP offers a quiescent current of only 110µA, which significantly extends battery life in portable applications. Its high 94% efficiency reduces power loss and minimizes heat generation.

Key features of the MAX1761EUP include its ability to start up with a full load from input voltages as low as 0.7V and its capability to operate down to 0.5V after startup. The device also includes a 2A peak inductor current limit, providing ample power for demanding applications. With its low 15µA shutdown current, the converter ensures minimal power consumption when inactive.

The MAX1761EUP is equipped with a range of protective features such as thermal shutdown, frequency foldback, and soft-start to prevent damage during abnormal operating conditions. Additionally, its low-noise operation is a result of a fixed-frequency PWM mode, which makes it an excellent choice for RF and other noise-sensitive applications.

Applications for the MAX1761EUP are diverse and include handheld computers, PDAs, digital cameras, and other portable devices where efficient power conversion is essential. With its high efficiency, low quiescent current, and compact form factor, the MAX1761EUP is a robust solution for extending the battery life of portable electronics.