Transcription of AN88 - Ceramic Input Capacitors Can Cause Overvoltage ...
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AN88 - Ceramic Input Capacitors Can Cause Overvoltage ...
Application Note 88. March 2001. Ceramic Input Capacitors Can Cause Overvoltage Transients Goran Perica A recent trend in the design of portable devices has been Building the Test Circuit to use Ceramic Capacitors to filter DC/DC converter inputs. To illustrate the problem, a typical 24V wall adapter used Ceramic Capacitors are often chosen because of their in notebook computer applications was connected to the small size, low equivalent series resistance (ESR) and Input of a typical notebook computer DC/DC converter. The high RMS current capability. Also, recently, designers have DC/DC converter used was a synchronous buck converter been looking to Ceramic Capacitors due to shortages of that generates from a 24V Input .
Ceramic capacitors are often chosen because of their small size, low equivalent series resistance (ESR) and high RMS current capability. Also, recently, designers have been looking to ceramic capacitors due to shortages of tantalum capacitors. Unfortunately, using ceramic capacitors for input filtering can cause problems.
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