SLUP408 February   2022 LM25149-Q1 , LM61460-Q1 , LM61495-Q1 , LMQ61460-Q1

 

  1. 1 Introduction
  2. 2 Defining EMI
  3. 3 What Causes EMI in a Switched-Mode DC/DC Regulator?
  4. 4 Existing Passive EMI Filtering Techniques
  5. 5 Passive Filter Limitations
  6. 6 AEF
  7. 7 Spread Spectrum
  8. 8 DRSS
  9. 9 True Slew-Rate Control
  10. 10HotRod™ Package Technology
  11. 11Optimized Package and Pinout
  12. 12Integrated Capacitors
  13. 13Conclusions
  14. 14References
  15. 15Important Notice

14 References

  1. Hegarty, Tim. “An Engineer’s Guide to Low EMI in DC/DC Regulators.” Texas Instruments e-book, literature No. SLYY208, 2021.
  2. Martin, Alan. 2013. “AN-2162 Simple Success With Conducted EMI From DC-DC Converters.” Texas Instruments application report, literature No. SNVA489C, April 2013.
  3. Texas Instruments. n.d. Buck Regulator Input Filter Capacitor for Conducted EMI Compliance. Accessed Nov. 30, 2021.
  4. Ramadass, Yogesh, Ambreesh Tripathi, and Paul Curtis. “Time-Saving and Cost-Effective Innovations for EMI Reduction in Power Supplies.” Texas Instruments white paper, literature No. SLYY200, April 2021.
  5. Ramadass, Yogesh, and Ambreesh Tripathi. “Advanced EMI Mitigation Techniques for Automotive Converters.” Texas Instruments Analog Design Journal article, literature No. SLYT789, 1Q 2020