LM2673T-3.3

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PMIC (Power Management Integrated Circuit) has been widely used in various types of devices, such as industrial computers, automotive systems, communication systems, security equipment and mobile phones. The LM2673T-3.3 Power Management IC (PMIC) from Ti is a DC-DC switching regulator that is used to convert an input voltage (from 2.5 to 28V) to a fixed output voltage (3.3V) which is adjustable. It allows an adjustable current limiting and thermal protection features which ensure the safety and efficacy of the power supply.

The LM2673T-3.3 is a step-down device, featuring a synchronous rectifier topology that creates an efficient, low EMI (electro-magnetic interference) output used to power an electronic system. The switching frequency of the LM2673T-3.3 is adjustable up to 1MHz and it supports a maximum output current of 3A. The switching frequency can be set from 200 kHz to 1 MHz, so it can be used for a wide range of applications. It also includes Built-in output current limit and thermal protection for improved reliability.

The LM2673T-3.3 is designed for a variety of industrial, communication, medical and instrumentation applications, such as FPGA, analog-to-digital converters, DC-DC converters, and low-noise power supplies for portable or embedded equipment.

The working principle of the LM2673T-3.3 is relatively simple. First, it takes an input voltage, which can be adjusted according to the requirements of the application, and then it uses switch mode power conversion to convert it into a regulated output voltage. The voltage is then regulated by a feedback loop which monitors the output voltage and adjusts the duty cycle and switching frequency accordingly.

The output voltage is set by the reference voltage of the feedback loop which is programmed into the IC. The current limit, thermal protection, and other protection features can also be configured by programming into the IC. The IC can be programmed using a microcontroller, or using a separate programming device, such as a dongle.

In conclusion, the LM2673T-3.3 is a robust and reliable DC-DC synchrounous boost converter from TI. It has an adjustable input voltage and output voltage which makes it suitable for a variety of applications. Its built-in current limit and thermal protection features make it safe and reliable. Additionally, its adjustable switching frequency up to 1MHz allows for a wide range of applications. For these reasons, the LM2673T-3.3 is an ideal choice for applications requiring an efficient and cost effective power supply.

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