LM3671MFX-1.2/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

The LM3671MFX-1.2/NOPB is part of Texas Instruments’ LM367X family of switching regulators. It is a DC to DC synchronous buck switching converter that can provide a maximum output current of up to 2.8 A depending on the ambient temperature. This converter utilizes 4-phase interleaving to decrease output ripple and improve efficiency. This regulator is housed in a PowerQFN 3.3 x 4.6 x 0.8 mm package and is rated for operation from an input voltage range of 3 V to 45 V.

The LM3671MFX-1.2/NOPB is designed to provide low output voltage ripple and good efficiency at light load conditions. It features a configurable switching frequency range of 250 kHz to 2 MHz and a low drop-out voltage of only 80 mV at full load. The IC also has integrated protection features, including over-current, over-temperature, and over-voltage protection, as well as a thermal shut-down feature.

The LM3671MFX-1.2/NOPB has a wide range of application fields, ranging from automotive and industrial applications to consumer electronics. It can be used to power many different types of devices, such as digital cameras, cell phones, and laptop computers. Additionally, due to its low drop-out voltage and high load current capability, it can also be used to power field-programmable gate array (FPGA) and micro-controller applications.

The operation of the LM3671MFX-1.2/NOPB is based on the buck-switching topology.The output voltage is adjusted by varying the duty cycle of the PWM signal applied to the gate of the external power MOSFET. This MOSFET is used to switch off and on the input voltage, thereby allowing the input voltage to be stepped down to generate the required output voltage. The input current is continuously monitored by an internal current sensing circuit and is used to control the switching of the external MOSFET.

The integrated control loop of the LM3671MFX-1.2/NOPB is designed to maintain a constant output current even in the presence of line and load transients. This is achieved by using a fast feedback loop that monitors the output voltage and adjusts the duty cycle of the switching signal accordingly. The IC also integrates load regulation circuitry to ensure stability during rapidly changing load conditions.

In order to better utilize the LM3671MFX-1.2/NOPB, some external components are required. These include an inductor, input and output capacitors, bias capacitors for the internal gate drivers and an optional external MOSFET for better efficiency. The board layout must also be carefully designed to ensure proper operation of the IC.

In summary, the LM3671MFX-1.2/NOPB is a versatile synchronous switch mode regulator that is suitable for a wide range of application fields. Its high efficiency and low drop-out voltage make it a good choice for powering FPGAs, microprocessors and other digital electronics. Its configurable switching frequency allows for further optimization of the efficiency and output voltage ripple.

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