The LM2575S-3.3/NOPB is a DC-DC step-down switching regulator integrated circuit (IC) component. Produced by Texas Instruments, it offers a highly efficient solution for converting higher input voltages to a fixed 3.3V output voltage.
Key features of the LM2575S-3.3/NOPB include a wide input voltage range of 4.5V to 40V, making it suitable for a broad range of applications. The device can deliver an output current of up to 1A with a typical efficiency of 80-90%.
To ensure stable performance, the IC incorporates features like current-mode control, internal compensation, and a built-in soft-start function. These features help in achieving a consistent and regulated output voltage despite input variations or load conditions.
The LM2575S-3.3/NOPB IC also includes protection features for enhanced reliability. It has built-in thermal shutdown circuitry, which safeguards the device from overheating and potential damage. Additionally, it provides protection against short circuits and overcurrent conditions, contributing to the overall robustness of the system.
The device uses a fixed frequency of 52 kHz, which simplifies the design and calculation of external components required for operation
