LME0512SC

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DC DC Converters

Today, DC converters are used in a plethora of applications, from powering cellular phones to TVs, industrial equipment, and even the largest of machines found in factories. As the technology behind these converters advances, new types of DC converters are becoming available, ranging from more efficient and compact designs to specialized converters designed for specific tasks, such as the LME0512SC. This paper will look at the application field and working principle of the LME0512SC to help better understand this type of DC converter.

Application Fields

The LME0512SC is a DC-DC converter designed to be used in applications such as  solar/photovoltaic or other 12V battery systems, router/wireless equipment, home theater systems, TV\'s, automotive electronics, or for any kind of power supply that operates on 12 VDC. It is known for its low input voltage deviation (min/max: 10.5V/15V) and adjustable input voltage range (10.5 - 20.0V). It is also known for its low output voltage ripple (max: 150mV). The efficiency of the converter is also remarkable, having a high range of 87-90%, depending on the load.

Working Principle

The LME0512DC works in the following way: it uses an input voltage, such as 12V, to construct an intermediate voltage (Vint) of 10.5-20V, which is then switched by a power switch (MOSFET) at a frequency of 2000kHz. This switching induces a pulsating current in the inductor; the current is then passed through the Power Switch MOSFET. Using this current, an output voltage, adjustable from 0.9V to 5.3V, is produced. It is this process that allows a change between input and output voltages.

Conclusion

The LME0512SC is a powerful DC converter designed for use in all types of 12 VDC systems. Its low input voltage deviation and adjustable input voltage range makes it ideal for powering devices requiring a reliable 12V input. Its efficient output current and up to 90% efficiency make it highly reliable for any of the numerous applications it can be employed in. As technology advances, more powerful and efficient types of converters will become available, such as the LME0512SC, and their application fields will only expand.

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