MIC2251-2YD5-TR

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The MIC2251-2YD5-TR is a high-performance, high-efficiency, 2A synchronous step-down regulator. In addition to its ability to regulate a regulated output voltage, this regulator can also be used in a wide variety of applications. This article will discuss the application fields and working principle of the MIC2251-2YD5-TR.

Application Fields of the MIC2251-2YD5-TR

The MIC2251-2YD5-TR step-down regulator is used in a variety of applications. Some of the most common applications include:

• Portable PCs, tablets and other mobile electronics
• DC - DC power converters
• Power conditioning for telecommunication and network equipment
• Automotive electronics
• Medical electronics
• Battery operated devices
• LED lighting
• Digital signage, industrial and consumer products

The MIC2251-2YD5-TR is capable of delivering up to 2A of continuous current and is designed to work within the wide input voltage range of 5V to 75V. Its 200KHz switching frequency provides high-efficiency operation, reducing stand-by power consumption to ultra-low levels. Its built-in soft-start feature helps minimize inrush currents during start-up, while other features such as frequency synchronization, cycle-by-cycle current limit and short-circuit protection keep the circuit protected and safe.

Working Principle

The MIC2251-2YD5-TR step-down regulator works by using an inductor to store energy on a periodic basis. When the switch is turned on, energy from the input voltage (V IN ) is moved through the inductor and stored in the form of an electromagnetic field. The energy stored in the inductor is then discharged into the load through the output diode, producing a regulated output voltage (V OUT ).

The MIC2251-2YD5-TR features a fully integrated control circuit that senses the feedback voltage, adjusts the switching frequency and adjusts the current limit as needed. The circuit also detects when the output voltage is reaching the upper or lower set point, and then either turns off the switch completely, or adjusts the switching frequency and/or current limit accordingly.

The MIC2251-2YD5-TR can be used for a variety of applications, due to its ability to regulate a wide range of output voltages and current limits, as well as its high efficiency and low stand-by power consumption. It is an ideal choice for a variety of applications, from automotive and consumer electronics, to LED lighting and digital signage.

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