RT8279GSP

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The RT8279GSP is an innovative DC/DC synchronous buck converter integrated with an on-chip gate driver and an oscillator portion. It is among the latest additions to the range of products offered by Richtek, a leading semiconductor company. The RT8279GSP is a high efficiency DC/DC switching regulator that is especially suitable for powering processor cores in systems such as laptop computers, tablets, and cellular phones.

The RT8279GSP is designed to provide high efficiency and low electromagnetic interference (EMI). It utilizes a high-side and low-side synchronous MOSFET topology for maximum efficiency. In addition, it features a low-noise current-mode buck controller with a fixed frequency of 1.5MHz. The on-chip driver allows for up to 0.5A gate charge with a maximum 0.14J gate charge. This enables high switching speeds and low EMI for small form factor and high-density applications.

The RT8279GSP is a step-down synchronous buck converter with a wide input voltage range of 4.5V to 24V and a single output voltage range of 0.6V to 5V. Its high switching frequency and integrated low-noise current-mode PWM controller make it ideal for high-current and high-speed applications. It is also capable of generating multiple output voltages in the same package by using three internal phases in series or buck configuration, making RT8279GSP a highly efficient solution for powering processor cores and graphics cores.

The RT8279GSP also features an adjustable frequency range that allows for a maximum of 1.5MHz, which provides for optimized system performance and improved transient response. In addition, the low quiescent current of 10uA and the wide operating temperature range from -40C to 85C make it suitable for a wide range of applications. This device also incorporates thermal shutdown and over current protections to ensure reliable operation.

Richtek’s RT8279GSP can therefore be used in a variety of applications, such as notebooks, LCD TVs and tablets, PDAs, and cellular phones. Its high efficiency, low quiescent current, wide input voltage range, and wide operating temperature range, makes the RT8279GSP the ideal DC/DC switching regulator for powering processor cores and graphics cores.

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