NCV890104MWR2G

The NCV890104MWR2G is a highly integrated DC/DC step-down converter with integrated high side and low side power FETs, designed to deliver up to 3A of continuous output current. This converter can be used in a wide range of applications, including notebooks, phones, medical equipment, point-of-sale terminals and other high power applications. The NCV890104MWR2G is categorized as a PMIC (Power Management IC) - Voltage Regulators - DC DC Switching Regulator, and this article will provide an overview of their application fields and working principles.

Application Field

The NCV890104MWR2G is especially capable of providing a robust power supply for devices that require a stable, efficient and compact power solution. This includes high-frequency operation requiring high-switching speeds from the power FETs. Typical use cases include applications such as notebook computers, mobile devices, handheld and instrumentation applications, or any application for which reliable, efficient power solutions are needed.Due to its small size, the NCV890104MR2G is suitable for applications with limited space. The device package is the SOT23-6, a small surface mount package measuring 6.1mm x 3.48mm x 1.6mm, ideal for miniaturized solutions that still require reliable operation. Its low-power standby mode (<0.1μA) makes it ideal for use in battery-operated applications.

Working Principle

The core of the NCV890104MWR2G is a synchronous buck converter, employing two independent power FETs working together to regulate the input voltage. It uses Pulse Width Modulation (PWM) to regulate the output voltage of the electronic circuit, with an accurate voltage control of less than 1% over the entire load and temperature range from 0 to 70°C, ensuring consistent and stable operation. The on-chip FETs are driven by low-power logic and use low-voltage fields (as low as 0.8V). The integrated FETs help reduce the total component count, resulting in a reduction in overall system cost and design complexity.The NCV890104MWR2G also features an advanced current-limit circuit, which enables the regulated output current up to 3A without the need for an external sense resistor. It includes a fast-startup system, capable of quickly delivering power to the output stage and an overvoltage protection circuit to prevent damage from excessive input voltage levels.

Conclusion

The NCV890104MWR2G is an ideal choice for applications that require a reliable and resilient power solution. Its highly integrated design results in a smaller overall package size, low quiescent current and low switching losses, making it an attractive choice for applications that require cost-effectiveness and efficiency. Its application field is wide-ranging and can be used in a variety of applications, including notebooks, phones, medical devices and point-of-sale terminals, among others. Its operating principles are based on a low-power synchronous buck converter, using a PWM algorithm to regulate output voltage and current, delivering up to 3A of continuous output current.