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LM2575-12BU TR is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is IC REG BUCK 12V 1A TO263-5. Review the specifications below when checking this part for your BOM.
The LM2575-12BU TR is a monolithic integrated circuit from the LM2575 series, functioning as a step-down (buck) switching regulator. It provides a fixed 12 V output with a maximum load current of 1 A. The device operates with an input voltage range of 4 V to 40 V and utilizes a fixed switching frequency of 52 kHz. Designed for surface-mount applications, it is housed in a 24-SOIC package. The component supports a junction temperature range from -40°C to +125°C.
Verify the specific manufacturer designation, as the LM2575 series has been transferred between Texas Instruments and Microchip Technology. Confirm that the datasheet corresponds to the Microchip variant, particularly regarding pinout compatibility and electrical tolerances, to ensure integration with existing designs originally based on TI specifications.
Select this part when a fixed 12 V output is required from a higher input voltage rail up to 40 V. The 24-SOIC package is suitable for surface-mount assembly processes. Consider the 52 kHz switching frequency for applications where moderate efficiency and low electromagnetic interference are balanced against component size constraints.
This component belongs to the LM2575 family of simple switcher regulators. The series is characterized by its ease of use and robust performance in standard buck converter topologies. The 'BU' suffix typically denotes the specific package type and tape-and-reel packaging configuration for automated manufacturing.
LM2575-12T/NOPB: Direct functional equivalent from Texas Instruments in a TO-220 package; requires PCB layout modification for through-hole mounting.
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