RT8299GSP

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Introduction to RT8299GSP

RT8299GSP is an adjustable low-cost monolithic synchronous buck DC/DC converter, designed to deliver an ultra-low voltage at higher efficiency and extremely low quiescent current (< 1uA in Punch-Through mode). Its high power density makes it an ideal solution in the demanding mobile and Internet-of-Things (IoT) applications, including the latest wearable and power management applications. It features 3.2V to 28V input range and provides output voltage of 0.8V to 3.4V with 2000 mA maximum output current capabilities.

Application Fields and Working Principle of RT8299GSP

As a DC/DC switching regulator, RT8299GSP is suitable for a wide range of applications such as cellular phones, personal digital assistants, portable medical devices, and power-sensitive industrial systems. The low voltage range of the RT8299GSP makes it most applicable for mobile and battery-powered applications. It also provides an adjustable & high frequency operation with a wide input voltage range and very low quiescent current.

Internally, RT8299GSP features two integrated N-channel MOSFETs. The main switching element is a logic-controlled N-channel MOSFET that operates in synchronous rectification mode to minimize the switching losses and optimize the efficiency. An auxiliary N-channel MOSFET is designed to reduce the device power and lower the total conduction loss by providing Burst-Mode operation (BM) with Auto-Burst-Mode (ABM) efficiency control. This synchronous buck regulator features internal Soft-Start and Voltage Loop Compensation for precise output voltage regulation. It provides a very compact solution for space-constraint applications.

To meet varied needs, RT8299GSP is programmable through a digital interface or an external resistive voltage. The wide operating temperature range between -40 to 85 degrees Celsius makes RT8299GSP extremely suitable for industrial applications. It also provides long duration protection through over-voltage protection, over-current protection (OCP), and thermal protection (TSD). These protection mechanisms help to keep the voltage regulator working within design parameters and improve the reliability of the system.

A major advantage of RT8299GSP is its precise voltage regulation. It\'s designed with a highly accurate voltage monitoring system that can maintain output voltage within tight tolerance (±1.5% of initial output voltage). This precise voltage monitoring feature makes RT8299GSP suitable for applications requiring accuracy, such as low power processors.

The ability of the RT8299GSP to deliver high efficiency with low power dissipation makes it especially applicable to power critical systems, such as laptop adapters, networking switches and routers. It also supports a wide range of input and output voltages, from 0.8V up to 28V, making it ideal for a variety of applications. Additionally its programmability, precise voltage regulation, and protection features make it suitable for powering industrial, automotive and military applications.

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