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LM317: Regarding the packaging issue of LM317 and LM337

Part Number: LM317
Other Parts Discussed in Thread: LM337

Hello!

The LM317 and LM337 chips, both packaged in TO-263-3, have similar functions and circuits. However, the second pin of the LM317 is an OUTPUT, while the second pin of the LM337 is an INPUT. I would like to ask if there is an issue with the datasheet or if this is the intended design?

Thank you very much for your reply!

Best regards!

您好!

封装为TO-263-3的LM317和LM337两款芯片功能类似、电路类似,而LM317的二号引脚为OUTPUT、LM337的二号引脚为INPUT,请问是数据手册出现问题还是正是如此设计?

非常感谢您的回复!

祝好!