The MAX683EUA+T is a high-efficiency, low-noise, dual-output, step-up DC-DC converter designed by Maxim Integrated to meet the power supply requirements of small electronic devices. This compact integrated circuit is capable of generating both positive and negative regulated outputs from a single positive input voltage, making it an ideal choice for applications such as OLED displays, CCD applications, and other portable devices that require dual supply rails.

Key Features

• Input Voltage Range: The device operates with an input voltage range from 2.7V to 5.5V, accommodating a variety of power sources such as single-cell lithium-ion batteries or multiple alkaline/NiCd/NiMH cells.
• Dual Output Voltages: It provides two output voltages, a positive adjustable output from +2.7V to +5.5V and a negative adjustable output down to -5.5V, both of which can be set using external resistors.
• High Efficiency: The MAX683EUA+T features an internal synchronous rectifier, which enhances efficiency and eliminates the need for an external Schottky diode.
• Low Noise: Its low-noise operation is achieved through a fixed-frequency, pulse-width modulation (PWM) control scheme, which minimizes RF interference in sensitive applications.
• Compact Package: The device comes in a space-saving, 8-pin µMAX package that is ideal for space-constrained applications.
• Thermal and Overload Protection: The MAX683EUA+T includes thermal overload protection and current limiting to ensure reliable operation under adverse conditions.

Applications

This versatile power solution is suitable for a wide range of applications, including but not limited to:

• Portable and battery-powered equipment
• OLED display power supplies
• CCD bias
• Operational amplifier/ADC/DAC biasing
• Handheld medical devices

Conclusion

In summary, the MAX683EUA+T from Maxim Integrated is a highly efficient and versatile power management solution that offers the convenience of dual outputs and low-noise performance in a compact package. Its broad input voltage range and adjustable output voltages make it an excellent choice for designers looking to optimize power in small, portable electronic devices.