Maxim Integrated's MAX1676EUB+ Step-Up DC-DC Converter

The MAX1676EUB+ from Maxim Integrated is a highly efficient, compact, step-up DC-DC converter designed for a variety of applications requiring voltage boost functionality. This versatile component is ideal for battery-powered devices, as it can increase the voltage from a lower battery voltage to the level required by the device circuitry, ensuring optimal performance even as the battery discharges.

One of the standout features of the MAX1676EUB+ is its ability to operate from an input voltage as low as 0.7V, making it perfect for single-cell applications. It can output voltages up to 5.5V, with an adjustable output that allows for precise control over the voltage supplied to the load. The converter is capable of delivering up to 28mA at a 3.3V output from a 1.5V input, and up to 120mA at a 5V output from a 3.3V input, which demonstrates its flexibility and power in a range of operating conditions.

Efficiency is a key concern in portable applications, and the MAX1676EUB+ addresses this with a quiescent current of only 17µA. This low power consumption, combined with a shutdown mode that reduces current to a mere 0.1µA, makes it an energy-saving choice for extending battery life. Additionally, the device features an internal synchronous rectifier that enhances efficiency by reducing the voltage drop and power loss typically associated with external Schottky diodes.

The MAX1676EUB+ comes in a space-saving µMAX package, which is an ultra-small 10-pin package ideal for space-constrained applications. Its small footprint does not compromise its performance, as it includes integrated soft-start to limit inrush current during startup, and a chip-enable pin for easy on/off control.

Overall, the MAX1676EUB+ is a robust and reliable solution for designers looking to boost voltage in their portable electronics. Its high efficiency, low quiescent current, and compact form factor make it a popular choice for applications such as PDAs, digital cameras, and other small, battery-operated devices.