Maxim Integrated MAX756ESA+T Step-Up DC-DC Converter

The MAX756ESA+T from Maxim Integrated is a compact, high-efficiency, step-up DC-DC converter designed to provide a reliable power solution for battery-powered devices and low-voltage systems. This versatile component is ideal for applications where a fixed 3.3V or 5V output is required from a lower voltage supply, such as single-cell, multi-cell, or alkaline batteries.

With its adjustable output voltage feature, the MAX756ESA+T allows designers to tailor the output to meet specific needs, making it suitable for a wide range of portable devices, including handheld instruments, medical equipment, and consumer electronics. The device operates over a wide input voltage range from 0.7V to 5.5V, enabling it to maintain a stable output even as the battery voltage declines.

The MAX756ESA+T utilizes a pulse-frequency modulation (PFM) control scheme to achieve high efficiency across various load conditions. This efficiency minimizes heat generation and extends battery life, which is critical for portable applications. The device also includes a low quiescent current, further conserving power when the device is in standby mode.

Key features of the MAX756ESA+T include:

• Fixed 3.3V or 5V or adjustable output voltage
• 2.85V to 5.5V input voltage range
• Up to 87% efficiency for longer battery life
• 120 mA output current at 5V from a 3.3V input
• Low quiescent current of 7μA
• Thermal overload protection
• Small 8-pin SO package

The device also includes safety features such as thermal overload protection, which prevents damage from overheating, and a shutdown mode that reduces current consumption to 1µA (max), further conserving battery life when not in use.

The MAX756ESA+T is available in a small 8-pin SO package, making it easy to integrate into space-constrained designs. Its robust design and efficient performance make it an excellent choice for engineers looking to enhance the power management capabilities of their portable and low-power devices.