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  _  _    _    _    __   __    ______   __   __  
 | \| || | || | ||  \ \\/ //  /_   _//  \ \\/ // 
 |  ' || | || | ||   \   //    -| ||-    \   //  
 | .  || | \\_/ ||   / . \\    _| ||_    / . \\  
 |_|\_||  \____//   /_//\_\\  /_____//  /_//\_\\ 
 `-` -`    `---`    `-`  --`  `-----`   `-`  --`

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Text this: Deign and build step-down switching regulator