發送短信 : Design of low drop-out linear voltage regulator

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