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App Note: Fast diodes for switching regulators

Posted on Sunday, September 30th, 2012 in app notes by DP

Here is an app note from Linear Technology describing the importance of diode turn-on time in high speed (<1MHz) switching regulators. Turn on time is the time it takes the voltage drop on the diode to clamp at the rated voltage drop.

Recently, switching regulator clock rate and transition time have become faster, making diode turn-on time a critical issue. Increased clock rates are mandated to achieve smaller magnetics size; decreased transition times somewhat aid overall efficiency but are principally needed to minimize IC heat rise. At clock speeds beyond about 1MHz, transition time losses are the primary source of die heating.

This entry was posted on Sunday, September 30th, 2012 at 9:00 pm and is filed under app notes. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

One Response to “App Note: Fast diodes for switching regulators”

  1. Niklas says:

    This app note is also available as a video, presented by Jim Williams!

    http://video.linear.com/26

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