Abstract
Voltage regulator is designed to automatically maintain the constant of regular voltage level. Every automotive IC has its own regulator module for analog and logic circuit power supply. The output load regulation and current consumption are directly related to the IC’s performance, or even the whole application module. The performance of regulator is not only related with the output parameters, but also the protection character. The over voltage protection feature guarantees the IC’s working environment within specific voltage input range. This article use one IDC’s (Intelligent Distribution Controller) regulator module to describe the design theory for regulator over voltage performance improvement. The test investigation and verification on ATE (Automatic Test Equipment) are demonstrated. The parameter of over voltage threshold is optimized obviously by 2% yield increasing.
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