LM2679SD-ADJ/NOPB

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LM2679SD-ADJ/NOPB is a voltage regulator and switching regulator fit in the Power Management Integrated Circuit (PMIC) voltage regulator category. It is designed to provide both adjustable and fixed output with a 2.7V to 20V output adjustable range, and up to 5A output current. This voltage regulator is suitable for a wide variety of applications, ranging from low voltage microprocessor supplies to DC/DC converters requiring current levels up to 5A.

The LM2679SD-ADJ/NOPB features an integrated Synchronous NMOS switch which allows for a high efficiency and low losses when switching from one voltage level to another. The regulator also has a wide input voltage range of 6V to 20V, and can be operated in either buck or boost mode for different output voltage needs. The LM2679SD-ADJ/NOPB provides a programmable soft-start, current limit and output tracking, as well as overtemperature protection.

The LM2679SD-ADJ/NOPB also has an integrated 1.2V reference and power amplifier to control the output voltage. This reference voltage is used to compare the output voltage of the voltage regulator, and an error amplifier feedback loop is used to adjust the output voltage to the desired level. The output voltage is adjusted either through external resistors or via the digital interface, allowing for precise control of the output voltage.

The working principle of a LM2679SD-ADJ/NOPB is similar to that of many other switching voltage regulators. When the voltage and current is applied, a primary side MOSFET will switch between connecting the input to the inductor, or connecting the inductor to ground, providing a regulated voltage to the output. The inductor and capacitor form a low-pass filter, which smoothes out the output and returns the excess energy stored in the inductor back to the input.

When the voltage at the output is higher than the set level, the error amplifier will tap the output voltage and try to decrease the output voltage. Conversely, when the voltage at the output is lower than the desired level, the error amplifier will increase the voltage at the output by supplying more current in order to raise the output voltage. The error amplifier will continuously monitor the output voltage and make adjustments to the voltage as needed.

The LM2679SD-ADJ/NOPB is a highly efficient device, with a wide input voltage range and high output current, making it ideal for many applications where a reliable voltage source is required. Its programmable features make it easy to tailor the output voltage for the specific application, allowing for easy adjustment as needed. With its reliable and efficient design, the LM2679SD-ADJ/NOPB is sure to meet the requirements of any application needing a reliable voltage regulator and switching regulator.

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