The LM2674MX-3.3/NOPB is an integrated circuit (IC) component manufactured by Texas Instruments. It is a switching voltage regulator that features a fixed output voltage of 3.3V. The IC offers high-efficiency power conversion with a compact design, making it suitable for various applications, including industrial equipment, consumer electronics, and computer peripherals.
One of the key features of the LM2674MX-3.3/NOPB is its wide input voltage range capability, which allows operation from inputs of 8V to 40V. This makes it versatile and flexible in different power supply configurations. Additionally, the IC is a step-down regulator, meaning it can efficiently convert a higher input voltage to a lower output voltage without using bulky transformers or dissipating excessive power as heat.
The device utilizes a constant frequency, voltage mode control scheme, providing predictable performance and fast transient response. It employs a current mode architecture, enabling superior line and load regulation, as well as cycle-by-cycle current limit protection. These features ensure stable and reliable operation even when subjected to varying input voltages and load conditions.
Another significant aspect of the LM2674MX-3.3/NOPB is its built-in protection mechanisms. It incorporates under-voltage lockout (UVLO), thermal shutdown, and current limit functions. UVLO prevents the regulator from operating with insufficient input voltage, thereby preventing potential damage
