LM25018MRX/NOPB

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Today, switching regulators are becoming more and more important as a means to efficiently power embedded systems and other applications. The LM25018MRX/NOPB is an excellent example of such a product, designed for use in high efficiency, low noise power applications. The product provides incredible features and functionality, allowing for a wide range of use in a variety of applications.

LM25018MRX/NOPB Application Field

The LM25018MRX/NOPB is designed for use in high efficiency, low noise power applications, such as industrial applications, consumer electronics, and telecommunications. It is used as a high frequency DC-DC buck regulator, providing a constant output voltage even in highly variable input voltage conditions. The product has wide input voltage range (10V-60V) and adjustable output voltage range (2.2V-24V) and provides up to 3A of output current with excellent temperature behavior. Additionally, it is highly efficient, with a high conversion efficiency of up to 95%.

The product offers two operating modes: continuous mode and Pulse-Frequency Modulation (PFM)mode. The PFM works well when the output current is low, such as when supplying a microcontroller. This way, the switching frequency is very low, resulting in low power consumption and low EMI. The LM25018MRX/NOPB also features built-in short-circuit protection, current limiting, and over-voltage protection.

LM25018MRX/NOPB Working Principle

The LM25018MRX/NOPB is based on a modern switching technology and features a fixed frequency, pulse-width modulation (PWM) control architecture. This type of design is more efficient and provides more accurate performance than variable-frequency designs. The PWM generator consists of a voltage reference, an oscillator, and a comparator. The voltage reference generates a reference voltage, while the oscillator generates a fixed clock signal used by the comparator to generate a pulse width modulated output signal.

The output of the LM25018MRX/NOPB is regulated by an internal error amplifier, which compares the output voltage to the reference voltage provided by the voltage reference. When the output voltage is above the reference voltage, the error amplifier reduces the pulse width of the switching signal, reducing the amount of energy going to the load. Conversely, when the output voltage is below the reference voltage, the error amplifier increases the pulse width of the switching signal, increasing the amount of energy going to the load.

In addition to its PWM control, the LM25018MRX/NOPB also features built-in synchronous rectification. This helps to further improve efficiency and reduce switching losses. The product also employs power-good, reverse-battery protection, and a patented short-circuit sensing, which shuts down the device in the event of a short-circuit.

In conclusion, the LM25018MRX/NOPB is an excellent choice for highly efficient, low noise power applications. It combines a modern, synchronous, PWM control architecture with built-in safety features, all in one package. This makes it the perfect choice for a wide variety of applications, from industrial to consumer electronics.

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