LM2575HVT-15/NOPB

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The LM2575HVT-15/NOPB is a Positive Adjustable Voltage Regulator from Texas Instruments. It is a step-down DC-to-DC converter that provides an output voltage which can be easily adjusted from 1.23 volts to 40 volts with the use of an external resistor divider. The LM2575HVT-15/NOPB is capable of delivering up to 1.5 Amp of continuous current with a typical efficiency of 85%. It also has a high power factor of 0.95 and can operate from input voltages up to 40 volts. It is designed for a wide range of applications such as automotive, telecom, datacom, and portable electronics.

The LM2575HVT-15/NOPB is composed of three main parts: an N-channel MOSFET, an error amplifier, and an output regulation block. The N-channel MOSFET acts as the power switch, which is used to regulate the output voltage. It is controlled by the output voltage feedback loop. When the output voltage decreases, the error amplifier senses this and turns on the N-channel MOSFET to bring the output voltage back to its set point. When the output voltage is too high, the N-channel MOSFET is turned off. The output regulation block controls the voltage regulation. It uses an error amplifier to compare the output voltage to the reference voltage and then adjusts the pulse-width modulation (PWM) of the N-channel MOSFET to maintain the output voltage at the set point. The N-channel MOSFET is used for low-saturation switching and low-temperature operation.

The LM2575HVT-15/NOPB features an adjustable frequency from 150 kHz to 1 MHz and also provides over-voltage, over-current and short-circuit protection. It also has thermal shut-down for protection against over-temperature. The wide input-voltage range and output overload protection make the LM2575HVT-15/NOPB the ideal solution for a variety of applications including battery-degree boards and power converters. Additionally, it is available in a variety of packages such as SOT223 and SOT23.

The LM2575HVT-15/NOPB is an efficient, low-cost and easy to use voltage regulator that is ideal for a variety of applications. Its adjustable output voltage, over-voltage protection, and wide temperature range make it suitable for automotive, telecom, datacom, and portable electronics. Furthermore, its small size and low-cost make the LM2575HVT-15/NOPB a great choice for cost-sensitive applications.

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