RT2875BQGCP

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The RT2875BQGCP is a DC/DC switching regulator from the PMIC-Voltage Regulator range of products. It is designed to provide efficient, low cost solutions for power conversion and system optimization. The device provides a wide range of switched mode and adjustable output levels, in addition to linear regulator capability.

The device incorporates a broad range of features and functionalities which include: high-efficiency, zero voltage switching, adjustable output, programmable over-temperature protection and over-current protection. The two synchronous switching converters can independently operate in boost and buck mode. The RT2875BQGCP is suitable for both single-ended, in-phase and double-ended out-of-phase operations.

The converters can be used to supply a low voltage from an input voltage that ranges from 1.0V to 6.5V and operate with a peak efficiency of above 90%. The broadband switching frequency range of 200 kHz to 500 kHz can be adjusted to achieve higher efficiency or faster load regulation. The device comes with a low output voltage ripple, making it suitable for low voltage applications.

The RT2875BQGCP’s broad range of features makes it suitable for a variety of applications. For example, it can be used to convert 5V to 3V for supplying a microprocessor and a high speed DDR3 memory interface, or it can be used to supply power for communication applications such as infrared or radio receivers and transmitters. The device can also be used to support low power LCD displays.

The RT2875BQGCP’s working principle is based on the switching regulator topology. This topology reduces disturbances in power supply bus and reduces stress on other switches and components. Two synchronous switching converters are used, operating as either a boost or buck converter. When operating as a buck converter, the device operates as a single-ended synchronous converter and when operating as a boost converter, it can operate as either a single-ended or double-ended synchronous converter. The device implements current mode control and it uses an integrated lower-side MOSFET and an external upper-side MOSFET.

In summary, the RT2875BQGCP is a versatile device offering efficient DC/DC conversion with low noise levels, wide operating range and adjustable output levels. It is suitable for a variety of applications such as microprocessors, DDR3 memory interface, communication applications, and low power LCD displays. Additionally, its current mode control utilizes the switching regulator topology for reducing disturbances in power supply bus and for reducing stress on other components in the system.

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