Maxim Integrated MAX1721EUA Step-Up DC-DC Converter

The Maxim Integrated MAX1721EUA is a high-efficiency, compact, step-up DC-DC converter designed for a wide range of applications. This versatile chip is capable of delivering a fixed or adjustable output voltage from a low-voltage input, making it an ideal solution for battery-powered devices, handheld electronics, and portable equipment.

Key Features

• Input Voltage Range: The device operates from a 0.7V minimum input voltage, which is perfect for applications powered by single-cell batteries or other low-voltage sources.
• Adjustable Output: The output voltage can be set from 2.5V up to 5.5V using external resistors, providing flexibility to match the voltage requirements of various loads.
• High Efficiency: With a quiescent current of only 17µA, the MAX1721EUA ensures minimal power loss, making it suitable for energy-sensitive applications.
• Small Package: The device comes in an 8-pin µMAX package, which is ideal for space-constrained applications.
• Low Shutdown Current: It features a low, 1µA shutdown current that helps prolong battery life when the device is not in active operation.

Applications

The MAX1721EUA is used in a variety of applications where efficient voltage step-up conversion is required. These include:

• Portable Media Players
• Wireless Mice and Keyboards
• Handheld Devices
• Personal Medical Devices
• Bluetooth Headsets
• Backup Power Supplies

Performance and Reliability

Maxim Integrated ensures that the MAX1721EUA meets the highest standards of performance and reliability. The device features over-temperature and current-limit protections to safeguard against adverse conditions. Additionally, the high switching frequency of up to 500kHz allows the use of small, low-cost capacitors and inductors, further reducing the overall footprint and cost of the power supply design.

Whether you are designing a new product or upgrading an existing one, the MAX1721EUA offers a robust and efficient solution for your DC-DC conversion needs, combining performance with the reliability that Maxim Integrated is known for.