RT9261B-50GX

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RT9261B-50GX Application Field and Working Principle

RT9261B-50GX is a versatile high-efficiency DC/DC synchronous buck converter that belongs to the PWM-controlled DC/DC switching regulators category. It is suitable for portable audio products and consumer applications with low output power requirements.

This DC/DC switching regulator is designed with a high-accuracy voltage regulator circuit, allowing it to efficiently and accurately control the output voltage. RT9261B-50GX has a wide input voltage range from 2.5V to 5.5V and is able to output up to 50W of power. This makes it an ideal solution for low-power applications such as portable audio products and consumer electronic products.

The features and benefits of the RT9261B-50GX include:

• High Conversion Efficiency: RT9261B-50GX has a conversion efficiency up to 96.5%, which ensures that less energy is wasted during the conversion process.
• Wide Input Voltage Range: RT9261B-50GX has a wide input voltage range from 2.5V to 5.5V, offering a more flexible solution for applications with varying input voltage requirements.
• Accurate Voltage Regulation: RT9261B-50GX is designed to accurately regulate the output voltage, ensuring stability and reliability for the application.
• Low Emission: RT9261B-50GX has a low noise and low electromagnetic interference (EMI) emission, making it suitable for use in environments where noise or EMI is a concern.
• High Output Power: RT9261B-50GX is able to output up to 50W of power, making it suitable for applications with high power requirements.

Working Principle

The working principle of the RT9261B-50GX DC/DC synchronous buck converter is based on the idea of using energy stored in a magnetic field to convert voltage from one form to another. When a magnetic field is coupled to a conductor, it produces a voltage across it. This voltage, when amplified, can be used to power an electronic load. The RT9261B-50GX works by taking in a varying input voltage, rectifying it, controlling it, and then outputting the desired voltage and current to the electronic load.

The RT9261B-50GX consists of a buck or step-down DC/DC converter, an inductor, two capacitors, two resistors, and an error amplifier. The input voltage is rectified into a DC voltage, which is then applied to the will driving transistor, transistors, or MOSFET. The current flowing through the switch is proportional to the voltage across it. The error amplifier is used to compare the voltage across the inductor to the reference voltage and an error signal is produced. This error signal is used to regulate the transistor, transistors, or MOSFET to switch on and off, thus controlling the current and voltage output from the inductor.

The output of the inductor is then rectified, regulated, and buffered to produce the desired output voltage and current. The inductor and capacitors store the energy and releases it in a regulated fashion as required, to prevent over/under voltage, current, or power output. The RT9261B-50GX also incorporates over-voltage, under-voltage and over-temperature protection features to increase system reliability.

Conclusion

The RT9261B-50GX DC/DC synchronous buck converter is a versatile high-efficiency DC/DC converter suitable for portable audio products and consumer applications with low output power requirements. This DC/DC switching regulator is designed with a high-accuracy voltage regulator circuit and is capable of providing up to 50W of power. It has a wide input voltage range from 2.5V to 5.5V and incorporates over-voltage, under-voltage and over-temperature protection features. The RT9261B-50GX DC/DC synchronous buck converter is an ideal solution for low power applications.

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