MP8847GD-Z

The MP8847GD-Z is a switching voltage regulator specifically designed for digital power applications. It combines the advantages of a voltage regulator controller with built-in gate drivers and FETs in a space-efficient package. Being one of the most popular DC-DC switching regulators for constructing digital DC/DC converters, it is widely used in a variety of electronic equipment such as TVs, PCs, mobile phones, routers, access points and instrumentation transducers, to name a few.

The MP8847GD-Z is a monolithic switching voltage regulator which utilizes current-mode control to achieve fast transient response and improved loop stability without requiring complicated external compensation. It has an adjustable output voltage range of 0.9V to 6V and current limits of 5A, 8A, 10A and 15A, making it suitable for a wide range of applications. It also features adjustable soft-start and a power good signal to ensure safe startup and system reliability.

The main application field of the regulator is in providing an efficient and cost-effective solution for converting one voltage level to another. It can be used for powering LCD displays and LEDs, generating intermediate bus voltages in distributed power systems, and step-down convertors for providing system voltage. Additionally, it can be used to drive high current output requirements of core processor along with voltage margining, which are extremely helpful features in mobility and digital instrumentation development.

The MP8847GD-Z works on a simple principle: it generates a fixed frequency square wave across the voltage rail to be regulated and the output voltage is sensed and compared with the reference voltage. The internal circuits inside the regulator generate an output that keeps the output rail effective at the requested voltage level. In addition, the switching frequency is adjustable, allowing for efficient control of output voltage ripple. Adjusted maximum and minimum pulse widths contribute to less stress on switching components and also make it possible to reduce the system’s external components count.

The MP8847GD-Z provides an integrated solution to a number of different power management solutions. By combining high efficiency and low noise with simple components and adjustable output voltage, it fits a wide range of different applications. Furthermore, the adjustable voltage and current limit capabilities, combined with its adjustable soft-start and power good signal, provide the designer with all the necessary tools to ensure reliable and safe system operation.