MC33565DMR2G

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PMIC (Power Management IC) offers an extensive range of Linear Voltage Regulators. MC33565DMR2G offers improved performance in terms of efficiency, current limitation and lower power consumption. It is highly suitable for applications such as cellphones, hand-helds and controller boards.

Application Field

The MC33565DMR2G is a modern, fully integrated linear voltage regulator for any size board or handheld device. It features adjustable voltage and current limiting, thermal shutdown protection, and an active low enable terminal. With an adjustable output voltage of up to 5.0 V and wide output current range of 0-1.5 A, it is designed to be used in a wide variety of industrial applications such as motor control and robotics. It is also suitable for medical devices and instrumentation, as well as automotive, telecom and aviation electronic systems.

Since the device is available in various standardization options such as pre-packaged devices (OFFLINE device), the buck 5V linear voltage regulators and integrated EPROM memory support. This makes it user friendly and cost-effective due to the ability to customize outputs, allowing it to provide the desired regulation for different application domain.

Working Principle

MC33565DMR2G is a linear voltage regulator that operates on the principle of Buck or Buck-Boost or Boost configurations. It regulates the output voltage applied across the load by comparing the voltage to the internally generated reference voltage, comparing the two and adjusting the output voltage accordingly. It is configured to operate from either input voltage or switching configuration.

In Buck configuration, the input voltage is greater than the output voltage, thus current is obtained from the input voltage for regulating the output voltage. The device has dedicated pins for feedback and output voltage adjustment, allowing user to set the output voltage as desired. The output voltage is also protected with a current protection circuit which activates a shutdown mode whenever the output current exceeds the specified current limit.

In boost configuration, the input voltage is lower than the output voltage, and hence power is pulled from the input source to the load. The operation principle is the same as buck configuration, but the components needed for controlling the output voltage are different. The MC33565DMR2G also requires high efficiency, low power consumption and improved output current regulation capability, which makes it suitable for high power applications.

The MC33565DMR2G also contains two dedicated pins for an over-temperature protection circuit, which will shut down the device if the temperature exceeds its specified limit.

It operates from a single or multiple supplies and can be used in a wide range of applications. It is robust, reliable and cost-effective, making it popular in industrial and automotive applications. It is also used in many cellphones, handhelds and controller boards for voltage regulation.

Conclusion

The MC33565DMR2G is a linear voltage regulator with high performance, low power consumption and improved output current regulation capability. Its adjustable voltage and current protection allow users to create the desired output voltage as desired. It is well suited for industrial, robotic and medical applications, as well as cellular phones, hand-helds, controller boards and aviation electronic systems.

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