RT8008-15GB

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A voltage regulator is an electronic circuit used to automatically maintain a constant voltage level. Modern DC/DC switching regulators provide high efficiency and precise output by coupling a control circuit with an energy-storage device. The RT8008-15GB DC/DC switching regulator is specifically designed for isolated single output applications such as 5V, 12V, table PC, and Set-Top Box (STB). Over voltage and over current protection, as well as enable and external shutdown has been integrated into this device, offering a higher level of system protection and flexibility.

RT8008-15GB Product Overview

The RT8008-15GB is an advanced, high efficiency DC/DC switching regulator. It is designed to provide isolated single outputs and utilise a deep cycle switched-mode power conversion technique with a full series of protection features and low no-load power consumption.

The RT8008-15GB is a simple and cost-effective solution with high power density. It features a synchronous rectification topology and includes an external +12V bias, 175kHz switching frequency, integrated over voltage protection (OVP) and over current protection (OCP) circuits.

RT8008-15GB Application Field

The RT8008-15GB is a versatile regulator suitable for a wide range of commercial and industrial applications.

• Telecom/Communication, including Set-Top Boxes and other audio/video applications.
• Servers, laptops, personal computers, and other data processing equipment.
• Industrial instrumentation and control systems, including measurement and testing instruments.
• Home automation and medical equipment.

RT8008-15GB Working Principle

The switching regulator works by actively controlling the output of an energy-storage device, such as a coil or capacitor, to produce the desired output voltage. The regulator achieves this control by repeatedly turning the device on and off. The on and off switching is determined by a control circuit, which compares the actual output voltage to a reference voltage. When the output voltage is higher than the reference voltage, the device is turned off and when it is lower the device is turned on. The frequency of the on and off switching determines the output voltage. By controlling the energy-storage device, the output voltage is maintained at the desired level.

The RT8008-15GB DC/DC switching regulator is a series regulator, which uses a regulated current source to control the output voltage. The RT8008-15GB includes a high voltage MOSFET to switch the current source on and off. The current source is regulated so that the output voltage is maintained at the desired level. The control circuit is integrated into the RT8008-15GB, allowing it to accurately and efficiently regulate the output voltage over a wide range of loads and operating conditions.

The integrated protection circuits also provide additional system protection. The OVP and OCP circuits ensure that the output voltage and current remain within the specified limits, preventing the device from being over-stressed. The integrated enable and external shutdown circuits allow the user to turn the device on and off as needed. The output voltage is maintained even when the device is shutdown, ensuring that the system remains in the desired state.

Conclusion

The RT8008-15GB DC/DC switching regulator is a simple and cost-effective solution suitable for a wide range of commercial and industrial applications. It features a deep cycle switched-mode power conversion technique with a full series of protection features. The integrated control circuit ensures that the output voltage is precisely maintained, while the OVP and OCP circuits offer protection against over-stressing. The device also includes an integrated enable and external shutdown circuit, allowing the user to easily turn the device on and off as needed.

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