SML4759HE3/61

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Diodes shunt a portion of the load current, allowing the power supply to maintain a constant output voltage. This device is designed to replace a traditional zener diode and is considered to be the modern diode of choice. It is known as the SML4759HE3/61, and the aim of this article is to explain its application field and working principle.

SML4759HE3/61 is a valuable tool for power-supply designers. It is particularly suitable for AC/DC converters, switching AC/DC sources, as well as in other applications where a stable, accurately regulated voltage is required. Due to its low on-resistance, the SML4759HE3/61 will consume less power than traditional zener diodes in its voltage regulator circuit. In combination with its temperature-compensation capabilities, this makes it highly reliable under a wide temperature range.

At the heart of the SML4759HE3/61 is its working principle. This device works using dynamic voltage scaling, also known as load-dependent regulation. This principle utilizes a feedback loop which maintains a predetermined output voltage based on the load current. When the load current increases, the output voltage is also increased, while when the load current decreases, the output voltage is decreased proportionally. In this way, power is conserved and a steady output voltage is maintained.

The SML4759HE3/61 also features an adjustable output voltage, which can be adjusted by changing the voltage seen across the device’s Sense pin. This allows users to choose the most suitable voltage for their design, as well as to adjust the output voltage of their power supply to match the desired specs.

The SML4759HE3/61 can also be used in environments where varying temperatures are present. It has a unique temperature compensation system, which keeps the output voltage stable, even during extreme temperature fluctuations. This allows for optimal and reliable operation over the entire temperature range.

In conclusion, the SML4759HE3/61 is an ideal diode for power supply designers that need a low-power, reliable voltage regulator. It utilizes a feedback loop to create a dynamic voltage scaling system, which maintains a constant output voltage while conserving power. Furthermore, its adjustable output voltage and temperature compensation capabilities make it a versatile and reliable component that is sure to improve the stability of any power supply design.

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