LM2674M-12/NOPB

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The LM2674M-12/NOPB is a monolithic integrated voltage regulator suitable for use in a variety of applications. It utilizes a switching regulated topology and provides superior performance over conventional linear regulators. The LM2674M-12/NOPB is capable of operating with an input voltage range of 9V to 25V and delivering an output voltage of 12V at 1.2A. It features integrated thermal shutdown, cycle by cycle current limiting, short circuit protection, adjustable soft start and output voltage trim. Additionally, the device has an adjustable frequency of up to 1MHz, enabling high efficiency operation.

The LM2674M-12/NOPB is intended for use in applications where low input voltage, low output voltage and high efficiency requirements are needed. It is particularly suited for battery powered products and other portable applications. Common applications of the LM2674M-12/NOPB include DC/DC converters, LED drivers, battery-operated equipment, and solar cell/wind energy power conversion systems.

The LM2674M-12/NOPB is a buck switching regulator where energy is transferred from the input supply to the output using two switches, an inductor and a diode. As shown in the circuit diagram below, the two switches are used to alternately connect the input supply and the inductor. When the switch is closed, current is drawn from the supply and stored in the inductor and when the switch is opened, the stored energy is released to the output. The diode is necessary to prevent the inductor from discharging backwards. The output voltage level is determined by an error amplifier, which monitors the output voltage and adjusts the switch duty cycle such that the output voltage is regulated at the desired level.

In addition to regulating the output voltage, the LM2674M-12/NOPB can also provide excellent protection against overvoltage, over-current, and overload. The voltage overload protection circuit limits the output voltage from exceeding a predetermined level. This protection is provided by a circuit that senses the output voltage and turns off the output when the voltage exceeds a certain threshold. Likewise, the LM2674M-12/NOPB is also equipped with an over-current protection circuit which limits the current drawn from the supply when the load current exceeds a certain level.

In order to ensure reliable operation, the LM2674M-12/NOPB employs a number of safety features. Its integrated thermal shutdown circuit prevents it from operating at excessive temperature levels. The soft start circuit ensures that the duty cycle is gradually increased from zero to its maximum level, eliminating inrush current. All of these features combined make the LM2674M-12/NOPB an extremely versatile device for powering a variety of applications.

The LM2674M-12/NOPB is a highly efficient and cost-effective switching regulator. Its excellent protection features and small package size make it an ideal choice for many different applications. It is also easily scalable, making it possible to create solutions with a wide range of output voltage and current levels. With its wide range of features and benefits, the LM2674M-12/NOPB is an excellent choice for any application requiring a high performance, low cost switching regulator.

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