DC/DC konvertere med gode EMI og termiske egenskaber
Med sigte på industri- og automotive-applikatione lancerer Texas Instruments to nye familier af DC/DC buck-reguatorer med lav EMI (in english).
Texas Instruments (TI) has introduced two families of wide-VIN synchronous DC/DC buck regulators with industry-leading electromagnetic interference (EMI) and thermal performance. The highly integrated 5-A and 6-A LM73605/6 and 2.5-A and 3.5-A LM76002/3 step-down voltage converters feature an optimized pinout and best-in-class thermal coefficient to simplify the process of achieving EMI compliance and higher reliability for rugged industrial and automotive power supplies. For more information, samples and evaluation modules, see www.ti.com/lm73605-pr-eu.The 3.5-V to 36-V LM73605/6 and 3.5-V to 60-V LM76002/3 buck regulators meet and exceed the demanding CISPR 25 Class 5 automotive electromagnetic compatibility (EMC) requirements. These regulators’ programmable output switching frequency can be set either above the AM band, which eliminates AM-band interference and reduces output filter size and cost, or below the AM band to optimize efficiency.
The small QFN package with unique wettable flanks delivers an ultra-low thermal coefficient of 7.1ºC/W to improve reliability and enables post-solder optical inspection to simplify manufacturing. Optimized package pin placement allows flexibility in board design to improve heat sinking, which minimizes radiated and conducted emissions.
