RT8267GS

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RT8267GS Application Field and Working Principle

RT8267GS is a DC-DC switching regulator from Richtek Technology, designed for providing reliable and quality power for IT, communication and automotive applications. It can offer up to 4 A output current and up to 4A of peak current. The wide input voltage range of 2.8V to 23 V also allows it to be used in various applications.

Primarily, RT8267GS is used in IT and communication applications such as notebooks, tablets, and datacenter server. In these applications, DC-DC switching regulators like the RT8267GS are used to step down and regulate the input supply voltage to keep the system’s power components working optimally and converting it to the desired output voltage.

In automotive applications, RT8267GS can be used to regulate input supply voltage for automotive infotainment systems and other electronic components in vehicles. With its wide operating temperature range and improved EMC performance, RT8267GS is suitable for automotive applications. As with IT and communication applications, the RT8267GS can step down and regulate the input supply voltage and convert it to the desired output voltage.

RT8267GS Working Principle

The working principle of RT8267GS is a switching regulator topology. It uses two power MOSFETs to control the switch in the power path to regulate the input voltage to the desired output voltage. The voltage regulation is controlled by a voltage feedback loop, which consists of an error amplifier and an over current protection circuit.

The error amplifier generates an output signal that is proportional to the difference between the output voltage and the reference voltage. This signal is fed back to control the on/off ratio of the power MOSFETs. An over current protection circuit is also included in the chip, which will turn off the power MOSFETs when the output current reaches the preset limit. The output voltage can be trimmed by an external resistor divider.

Conclusion

RT8267GS is a DC-DC switching regulator with a wide input voltage range and up to 4A output current. It can be used in both IT and communication applications and automotive applications. The RT8267GS working principle is based on a switching regulator topology and it is controlled by a voltage feedback loop. The over current protection circuit will turn off the power MOSFETs when the output current reaches the preset limit. The output voltage can be trimmed by an external resistor divider.

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