Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DC DC Converters

DC-DC converters are an essential component of modern power electronics systems. They smoothly convert direct current (DC) from one voltage level to another, making them invaluable in applications that require consistent and reliable power, such as cellular phones, embedded systems, communications systems, and industrial control systems. One type of DC-DC converter particularly suited for these applications is the SQM48T20012-NBBT. This article explains the application field and working principle of this converter.

Application Field of SQM48T20012-NBBT

The SQM48T20012-NBBT is a step-down DC-DC converter. It is an ultra-compact solution with a low thermal resistance package for 3-A DC/DC buck converter applications. This converter has a maximum input voltage of 28 V, making it suitable for a wide range of industrial and automotive applications. It is capable of driving up to three synchronous rectified buck regulator channels, each channel enabling an output current of up to 1.22 A. The device offers excellent efficiency of up to 91.4% and is able to provide stable power conversion from digital input voltage source at up to 2.2 MHz. It is also designed to withstand voltage transients of up to 60 V, making it highly reliable.

The SQM48T20012-NBBT is available in a wide range of configurations, including SIP package, automotive grade, bare die, and two power expander options with the ability to support up to six synchronous buck regulators. This makes the device suitable for a variety of applications, such as automotive electronics, LED/LCD lighting products, notebooks, industrial, and consumer applications.

Working Principle

The SQM48T20012-NBBT is a switching regulator. This means that, in order to efficiently transform one voltage to another, the converter firstly converts the input voltage to some intermediate voltage. This is then switched into a higher or lower voltage, resulting in a much more efficient conversion.

The SQM48T20012-NBBT is a step-down converter, meaning that it steps the input voltage down to the desired output level. It does this by using an inductor to store a large current, which is then discharged during the switching cycle to maintain the desired output voltage. As the input voltage increases, the duty cycle of the converter must increase in order to reduce the output voltage. On the other hand, if the input voltage decreases, the duty cycle must decrease in order to maintain the output voltage.

The SQM48T20012-NBBT is also equipped with several protection functions that enable it to automatically shut down in case of over-current or short-circuit conditions, as well as protect sensitive circuits from over-voltage or under-voltage scenarios.

In short, the SQM48T20012-NBBT is an incredibly versatile and reliable step-down DC-DC converter that is suitable for a wide range of applications. Its excellent efficiency and wide range of configuration options renders it well-suited for today’s power solutions.

The specific data is subject to PDF, and the above content is for reference