LM22680MRX-ADJ/NOPB Integrated Circuits (ICs)

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The LM22680MRX-ADJ/NOPB is an adjustable current-mode synchronous buck switching regulator with overvoltage protection (OVP). It is specifically designed for applications using a wide range of input sources, including industry-standard AC adapters, Li-ion batteries, switched mode power converters (SMPCs), and a variety of other power sources. This product is part of Texas Instruments’ System Power Management ICs, which provide a low-cost, flexible solution for managing a wide range of power requirements in many applications. The LM22680MRX-ADJ/NOPB is a member of the LM22680 family of DC-DC switching regulators and is suitable for applications including computing and networking equipment, imaging, cellular and cordless telephone, DVD players, wire line modems and automotive systems.

The LM22680MRX-ADJ/NOPB is designed to regulate the output voltage from an input voltage source within a specified range. It features an adjustable output voltage of up to 5.5V with a high current rating of up to 4A. The device also features short-circuit, thermal overload, and overvoltage protection. This protection ensures that the device remains safe during operation and prevents excessive power dissipation and output current. The LM22680MRX-ADJ/NOPB is also capable of operating in Pulse Frequency Modulation (PFM) mode, which greatly reduces power dissipation while providing the same amount of regulation.

The switch on the LM22680MRX-ADJ/NOPB controls the output of the device. The switch is controlled by a current-mode control loop, which reduces the cost and complexity of the system. The current-mode control loop allows the LM22680MRX-ADJ/NOPB to respond quickly to changes in load current, ensuring that the output voltage remains within an acceptable range and that the device does not remain in operation for too long during heavy load conditions. The current-mode control loop also helps the device to maintain a constant switching frequency and reduce output radiations, thus improving EMI performance.

The adjustable current-mode synchronous buck switching regulators of the LM22680MRX-ADJ/NOPB have a variety of applications in power management systems. These include providing regulated power to logic, microprocessors, and other digital circuitry, providing regulated power to high-efficiency power amplifiers, providing regulated power to low-noise analog circuits, and providing a regulated output to light-emitting diode (LED) and liquid crystal displays (LCDs). These switching regulators are also useful in applications such as motor speed control, motor drive systems, and medical applications. This device is also suited for many automotive applications, including on-board charging systems and power distribution systems.

In summary, the LM22680MRX-ADJ/NOPB is a cost-effective, adjustable current-mode synchronous buck switching regulator that offers robust protection features and high reliability. It is suitable for use in a variety of applications, and offers a low-cost and flexible solution for managing the power requirements of a wide range of applications. With the features built into the device, the LM22680MRX-ADJ/NOPB is a great choice for many DC-DC switching regulator applications.

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