LM2575N-12/NOPB

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LM2575N-12/NOPB is a part of high efficiency voltage regulator series manufactured by Texas Instruments. It is categorized as a PMIC - voltage regulator - DC DC switching regulator.

LM2575N-12/NOPB is an adjustable regulator capable of producing regulated 3A output current from input voltage range from 6V to 40V. It features high efficiency and 500Khz switching frequency with over 70dB ripple rejection. It also features thermal shutdown, current limiting, and over-voltage protection.

The LM2575N-12/NOPB regulator is an improved version of the LM2575, which comes with improved noise rejection, reverse voltage protection, and reduced feedback voltage requirements for better noise immunity and reduced output voltage accuracy degradation over temperature.

The application field of the LM2575N-12/NOPB voltage regulator includes various DC/DC converters, server power supplies, motor control, and other power management systems. This makes it an appropriate choice for applications that require stable, regulated output voltages with high efficiency, accurate voltage regulation, and low output ripple.

The LM2575N-12/NOPB voltage regulator is based on a switching converter architecture. This type of regulator works with an input input voltage source, a power transistor, an inductor, and a capacitor. The input source provides power to the transistor, and the inductor acts as a filter between the rectified input and the output of the regulator. The output of the regulator is monitored by an error amplifier, which compares the output voltage to a reference voltage and adjusts the magnitude of the output voltage accordingly.

The LM2575N-12/NOPB’s integrated error amplifier is based on a pulse width modulation (PWM) buck topology. This means that the power switch is operated at a fixed frequency, while the duty cycle of the transistor is adjusted depending on the difference between the output voltage and the reference voltage. The LM2575N-12/NOPB regulator also features an adjustable soft-start feature, which allows for a gradual increase of the switching frequency at turn-on.

LM2575N-12/NOPB from Texas Instruments is a worthy choice for applications that require efficient and reliable voltage regulation. Its features make the device suitable for a large range of applications, from server power supplies to electronic motor control. The over-current protection and thermal shutdown features provide a good level of protection for the device and for the connected load, while the adjustable soft-start feature allows for a slow and gradual power up of the system.

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