Maxim Integrated MAX1724EZK50-T Step-Up DC-DC Converter

The MAX1724EZK50-T is a high-efficiency, low-quiescent-current step-up DC-DC converter designed and manufactured by Maxim Integrated. This versatile component is ideal for battery-powered applications where extended battery life is paramount. It is housed in a compact 5-pin SOT-23 package, making it suitable for space-constrained applications.

With a minimum start-up voltage of just 0.7V and a 500kHz switching frequency, the MAX1724EZK50-T can step up from very low voltages and maintain a high level of efficiency. This feature is particularly beneficial for single-cell or dual-cell battery operations, as it allows the device to continue functioning even as the battery voltage drops. The device can operate with input voltages ranging from 0.7V to 5.5V, delivering a fixed 5V output, which is ideal for powering microcontrollers, sensors, and other ICs that require a stable voltage source.

The MAX1724EZK50-T incorporates a unique current-limited, pulse-frequency-modulation (PFM) control scheme that provides high efficiency over a wide range of load conditions. This efficiency is further enhanced by the low quiescent current of only 7µA, which reduces the drain on the battery when the device is in standby mode. Additionally, the converter features a shutdown mode that lowers the quiescent current to just 0.1µA, providing an effective way to conserve power when the system is not active.

Protection features of the MAX1724EZK50-T include a thermal shutdown mechanism that prevents the device from overheating, ensuring safe operation under all conditions. The device also has a soft-start feature that minimizes inrush current, which is critical for preventing damage to the battery and other sensitive components at power-up.

In summary, the MAX1724EZK50-T from Maxim Integrated is a reliable and efficient solution for portable electronic devices that require a step-up voltage conversion. Its low power consumption, wide input voltage range, and compact form factor make it an excellent choice for designers looking to maximize battery life without sacrificing performance.