Product Overview: MAX1698EUB+ from Maxim Integrated

The MAX1698EUB+ is a highly efficient, compact, step-up DC-DC converter designed by Maxim Integrated, a leader in analog and mixed-signal integrated circuits. This advanced component is engineered to provide a seamless power solution for battery-powered devices, portable electronics, and systems requiring a high-efficiency voltage boost.

Featuring an adjustable output voltage range from 2.7V to 5.5V, the MAX1698EUB+ is capable of delivering a continuous output current up to 350mA (at 3.3V output) with a supply voltage ranging from 0.7V to 5.5V. This wide input voltage range makes it suitable for applications powered by single-cell batteries, such as Li-ion, NiMH, or alkaline cells.

The device operates at a fixed 1.2MHz switching frequency, which allows for the use of tiny, low-profile inductors and capacitors, thereby minimizing the overall footprint on the PCB. This high switching frequency, in combination with its pulse-frequency modulation (PFM) control scheme, ensures high efficiency across the entire load range, making it ideal for portable applications where battery life is critical.

The MAX1698EUB+ comes in a space-saving 10-pin µMAX package, which is highly beneficial for designs where board space is at a premium. Its integrated features include soft-start to limit inrush current during startup, thermal overload protection, and a low-battery detector that signals when the input voltage falls below a preset threshold, thus safeguarding the device and the system it powers.

With its simple external circuitry and minimal external components requirement, the MAX1698EUB+ provides a straightforward solution for designers looking to implement a reliable power source in their applications. Whether it's for handheld devices, medical instruments, or any other portable gadgets, the MAX1698EUB+ is an excellent choice for a step-up voltage regulator that combines efficiency, compactness, and ease of use.

Key Features:

• Adjustable Output Voltage: 2.7V to 5.5V
• Up to 350mA Output Current
• 0.7V to 5.5V Input Voltage Range
• 1.2MHz Fixed Switching Frequency
• High Efficiency Across Load Range
• 10-pin µMAX Package
• Integrated Protection Features
• Low-Battery Detector