LM2679SDX-3.3

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LM2679SDX-3.3 is a versatile DC-DC switching regulator, a power management integrated circuit (PMIC), which is one of the components of the voltage regulation subsystems. It is typically used in applications such as power supply conversion, power optimization, and power conditioning.

The LM2679SDX-3.3 chip helps to solve the power supply design\'s most difficult problem, meeting complicated system requirements accurately, reliably and cost-effectively, while also reducing power consumption and offering a wide range of output power. The device is an adjustable voltage regulator with an output voltage range of 0.6V to 3.3V suitable for applications requiring an input voltage range of 3.3V to 28V. It is designed to provide an adjustable high current output and wide input voltage range while maintaining low ripple and noise.

The LM2679SDX-3.3 has several key features that make it suitable for a variety of applications. It has an integrated step-down controller which is programmable, single-end current sense, as well as thermal foldback protection. The device also features an integrated, adjustable soft-start and adjustable loop compensation for improved transient response, providing higher output voltage accuracy. Additionally, the LM2679SDX-3.3 utilizes a cycle-by-cycle current limit, allowing it to maintain high output current at low, fixed switching frequencies.

The working principle of the LM2679SDX-3.3 follows the same working principle as many other DC-DC switching regulators. The chip utilizes an internal oscillator to regulate the speed of the switching device as well as the duration of each switching cycle. The device senses the input voltage and adjusts the internal control loop to regulate the output voltage to the required value. As the input voltage increases, the regulator increases the frequency of the switch, increasing the output current. As the input voltage decreases, the frequency of the switch decreases, decreasing the output current. This allows the device to maintain the output voltage regardless of the changes in the input voltage.

The LM2679SDX-3.3 is a highly integrated and cost-effective DC-DC converter designed to meet the demands of a wide range of applications requiring an adjustable output voltage. With its wide input voltage range, high current output and low output ripple, the LM2679SDX-3.3 is well suited for many power supply conversion, power optimization and power conditioning applications. With its simple set up and integrated safety features, the LM2679SDX-3.3 is an ideal choice for a variety of power supply applications.

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