MIC28303-1YMP-TR

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DC-to-DC converters are electronic circuits used in power electronics, which help to convert direct current (DC) from one voltage level to another. They are usually classified according to their topology, which describes the way their components are connected. The MIC28303-1YMP-TR is a high-efficiency, low-noise, synchronous buck converter, with a negative output voltage and a positive output voltage that can be adjustable.

The main application field of the MIC28303-1YMP-TR is in a variety of consumer appliance applications, such as cell phones, tablets, notebooks, digital cameras and other consumer electronics. It’s also used in automotive, industrial, and power over Ethernet (PoE).

The MIC28303-1YMP-TR is part of the micropower family, which is designed to have low quiescent current and high efficiency of 97.8% typical. It operates from an input voltage range of 4.75 to 20 V and delivers an output voltage from −0.6 V to +6 V, at up to 800mA. It also comes with over-current protection, over-temperature protection, and adjustable soft-start.

The MIC28303-1YMP-TR features an operating frequency, set by an integrated feedback network (FRFC) or an external resistor, up to 1MHz with a 0.7V feedback voltage providing high efficiency. It offers a very low noise output current ripple at any applied load current and its output voltage is adjustable via an external resistor divider.

The working principle of the converter is fairly straightforward. It begins with the input voltage being regulated and stepped-down to create a current, which is then transformed by an inductor, electrolytic capacitor, and output voltage regulator. The inductor is used to store energy from the input voltage, the capacitor is used to help maintain the converter’s stability, and the regulator is used to maintain the output voltage.

The MIC28303-1YMP-TR is one of the most energy efficient and cost effective DC-to-DC converters available. It offers a good balance of efficiency and power transfer, while also offering a low noise output current ripple and adjustable output voltage. This makes it a great choice for a wide variety of consumer electronics devices and applications.

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