LM25117QPSQ/NOPB

DC DC Switching Controllers Overview

The LM25117QPSQ/NOPB is an automotive-grade, wide-input range synchronous buck controller manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 42V and supports switching frequencies up to 750kHz. The device features current-mode control with integrated soft-start and frequency synchronization capabilities. Packaged in a 24-WQFN (4x4) format, it meets AEC-Q100 qualification standards for automotive applications. The controller includes protection features such as undervoltage lockout and thermal shutdown, ensuring reliable operation across the specified temperature range.

DC DC Switching Controllers Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Wide input voltage range supporting 4.5V to 42V operation
• Current-mode control architecture for precise regulation
• Integrated soft-start and thermal shutdown protection mechanisms

DC DC Switching Controllers Applications

• Automotive power distribution systems
• On-board charger (OBC) modules
• DC-DC conversion in electric vehicle architectures
• Industrial power supplies requiring wide input ranges

DC DC Switching Controllers Procurement Notes

Verify that the component carries the 'Q' suffix indicating AEC-Q100 automotive qualification. Confirm the package type is WQFN-24 and the specific ordering code matches LM25117QPSQ/NOPB. Ensure compatibility with automotive environmental requirements before integration into final designs.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring robust automotive certification and wide input voltage tolerance. It is suitable for designs needing high efficiency through synchronous rectification and flexible switching frequency options. Consider the 24-WQFN package for compact board layouts and efficient thermal dissipation in space-constrained environments.

DC DC Switching Controllers Part Context

This part belongs to the LM25117 family of synchronous buck controllers designed for demanding power management tasks. The QPSQ variant specifically targets automotive markets, offering enhanced durability compared to standard industrial counterparts. It complements other TI power solutions by providing a scalable platform for various voltage conversion needs.

DC DC Switching Controllers Replacement Considerations

LM25117PSQ/NOPB serves as a direct functional substitute within the same family, sharing identical electrical characteristics and pinout configurations while maintaining automotive qualification.