LM2576HVT-ADJ/NOPB

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LM2576HVT-ADJ/NOPB Application Field and Working Principle

LM2576HVT-ADJ/NOPB is widely used in a variety of electrical products, such as mobile phones, tablets, computer components, communication equipment, and any other device requiring a regulated DC power supply. As a high voltage DC/DC regulator, LM2576HVT-ADJ/NOPB reduces a voltage from a high voltage input to a regulated low voltage output. It is designed to work with a wide input of up to at least 45 Vwith different operational voltage modes. LM2576HVT-ADJ/NOPB is classified as an adjustable step-down (buck) switch regulator. It includes an internal power MOSFET, which enables current waveform optimization for maximum efficiency at any load. This product series can provide up to 1.5A of output current, with adjustable output voltages from 1.23V to 37V.

LM2576HVT-ADJ/NOPB converter also includes protection features such as thermally enhanced power dissipation, dynamic overtemperature protection, current limiting, and short circuit protection. Its low quiescent current requirements, fast load transient response, low ripple outputs, and high efficiency make it ideal for automotive, computer, and communication applications.

The working principle of LM2576HVT-ADJ/NOPB can be grasped by understanding the six basic steps of operation. Firstly, the driver turns on the power MOSFET switch in response to an input voltage higher than the feedback voltage. Secondly, the power MOSFET switch is turned on and off in a controlled fashion producing a train of short pulses of voltage filtered and regulated to the desired output voltage. Thirdly, the duty cycle of the control pulse determines the amount of energy transferred between primary and secondary circuits. This, in turn, sets the output voltage. Fourthly, the current passing through the MOSFET switch and the output inductor is sensed and monitored. Fifthly, the output of the control loop is compared with the reference voltage to ensure its stability. Lastly, the cycle repeats itself for the entire duration that the power switch is on.

In summary, LM2576HVT-ADJ/NOPB is a highly efficient and reliable DC/DC step-down regulator capable of delivering up to 1.5A of output current. Its wide input voltage range and adjustable output voltage make it suitable for a variety of applications. It also includes a variety of protection features and has a fast load transient response. The six basic steps of operation as outlined above provide a good understanding of its working principle.

The specific data is subject to PDF, and the above content is for reference