Maxim Integrated MAX849ESE+T Charge Pump Voltage Inverter

The Maxim Integrated MAX849ESE+T is a highly efficient, low-power charge pump voltage inverter designed for a wide range of applications that require a negative voltage generated from a positive input voltage. This compact, surface-mount device comes in a 16-pin narrow SO package and is specifically tailored for space-constrained applications.

One of the key features of the MAX849ESE+T is its ability to provide a guaranteed output current of 25mA with no external diodes, which is ideal for powering small to medium-sized loads. The charge pump operates with an input voltage range from 2.7V to 5.5V, making it versatile for use in various electronic devices, including battery-operated equipment.

The MAX849ESE+T offers a high switching frequency of 35kHz, which allows for the use of small, low-cost capacitors while minimizing the ripple on the output voltage. This results in a cleaner, more stable negative voltage supply. Furthermore, the device includes an oscillator control pin that can be used to adjust the switching frequency or to synchronize it with an external clock, reducing noise and interference in noise-sensitive applications.

Another advantage of the MAX849ESE+T is its low quiescent current, which is typically 120µA, making it suitable for power-sensitive designs. The device also features thermal shutdown protection, ensuring reliable operation by preventing overheating during high current conditions or ambient temperature extremes.

The MAX849ESE+T is an excellent choice for designers looking for a simple, efficient, and compact solution to generate a negative voltage rail. Its ease of use, coupled with Maxim Integrated's reputation for quality and reliability, makes it a preferred component for a variety of applications, including LCD bias supplies, portable instruments, and op-amp power supplies.

Overall, the Maxim Integrated MAX849ESE+T charge pump voltage inverter is a robust solution that offers a combination of efficiency, flexibility, and reliability for designers needing a negative voltage source in their electronic designs.