Maxim Integrated MAX1677EEE+T Step-Up DC-DC Converter

The MAX1677EEE+T from Maxim Integrated is a high-efficiency, compact, step-up DC-DC converter designed for a variety of applications requiring voltage boost functionality. It is particularly well-suited for portable devices due to its low quiescent current and high efficiency over a wide range of load conditions. This device is capable of boosting input voltages as low as 0.7V to a selectable output voltage, making it ideal for battery-powered solutions where maximizing battery life is crucial.

The MAX1677EEE+T operates at a fixed 600kHz switching frequency, allowing the use of small, low-cost inductors and ceramic capacitors. This results in a space-saving solution that is beneficial for space-constrained applications. Its internal synchronous rectifier enhances efficiency and eliminates the need for an external Schottky diode. This integrated feature contributes to a reduction in overall component count and system complexity.

With a wide input voltage range of 0.7V to 5.5V, the MAX1677EEE+T is versatile enough to be used in systems powered by single-cell lithium-ion (Li-ion) batteries, multiple alkaline/NiMH cells, or other standard power sources. The device can deliver a fixed output voltage of 3.3V, or an adjustable output voltage from 2.5V to 5.5V when using external resistors, providing design flexibility to accommodate specific application requirements.

Additional features of the MAX1677EEE+T include a low 120µA quiescent current, a 2µA shutdown mode, and a soft-start function that minimizes inrush current during startup. Its over-temperature and current-limit protection mechanisms ensure reliable operation under abnormal operating conditions.

Available in a 16-pin QSOP package, the MAX1677EEE+T is designed for easy integration into a wide range of applications, including but not limited to, handheld devices, wireless peripherals, and portable media players. Maxim Integrated's commitment to quality and reliability makes the MAX1677EEE+T a smart choice for designers looking to enhance the performance and extend the battery life of their portable applications.

For detailed specifications and application support, designers should refer to the official datasheet and technical resources provided by Maxim Integrated.