RT9008GE Integrated Circuits (ICs)

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Realtek’s RT9008GE is an integrated linear regulator controller with 10-bit resolution for microprocessor core voltage control. It can provide low noise voltage regulation, with adjustable output voltage, high resolution, and fast transient response as desired. RT9008GE features automatic output voltage or current sensing, load line programming and multiple output voltage settings, making it suitable for wide variety of applications, such as mobile phone, gaming console, tablet and set-top box.

The RT9008GE is capable of a maximum output current of 6A. It is packed in a 8-pin TSOP package with a voltage range of 2.5V to 4.2V. RT9008GE supports well controlled loop fast transient response to meet the requirement of large load current conditions, such as graphics processor. It also contains advanced features like power-on reset, watchdog timer, and over current protection (OCP). This integrated controller is designed to provide ultra-low output voltage ripple, high efficiency and extended battery life.

Overview of RT9008GE Application Field

The RT9008GE is a fully integrated voltage controller for microprocessors. It can provide a low noise and highly dynamic regulation of processor core voltage with adjustable output voltage and 10-bit resolution. This provides greater flexibility for controlling processor voltage levels, as desired. RT9008GE’s features make it suitable for many applications, including but not limited to:

• Mobile phones
• Gaming consoles
• Tablets
• Set top boxes
• Automotive applications

The RT9008GE is capable of a maximum output current of 6A, and incorporates advanced features such as power-on reset and watchdog timer, as well as over current protection (OCP). It is offered in an 8-pin TSOP package with a voltage range of 2.5V to 4.2V, and is available in both leaded and lead-free packages. It utilizes a wide range of external components to satisfy different system requirements.

RT9008GE Working Principle

The RT9008GE is an integrated linear regulator controller designed to provide a low noise voltage regulation with adjustable outputs and fast transient response. It consists of a voltage monitor, an error amplifier, a logic control circuit, a timing and control circuit, a reference amplifier, a current detect circuit, a reference voltage generator, and a voltage setting circuit. The voltage monitor is used to measure the output voltage of the controller and the reference voltage is responsive to the output voltage, thus allowing the controller to compensate for changes in the output voltage.

The error amplifier compares the output voltage with a feedback voltage generated from the reference amplifier, and then produces an error signal. This error signal is used to control the current through the pass transistors and sets the output voltage of the controller. The logic control circuit is responsible for monitoring the voltage and current conditions, as well as for generating logic signals for control purposes. The timing and control circuit sets the operating frequency and operating mode of the controller, while the reference amplifier is used to provide a stable reference voltage and current. Finally, the voltage setting circuit allows the output voltage level to be adjusted.

The RT9008GE is a sophisticated linear regulator controller which provides superior features such as low noise and wide range of output voltage. With its high output current and fast transient response, it can provide comprehensive voltage regulation in a variety of applications.

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