This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/613165/lm1117-any-possible-issue-in-the-long-run-when-using-lm1117-as-constant-current-source
您好！
我经常看到将稳压器用作恒流源来驱动 LED 的应用。
在下面的电路中、如果 MOS 开关一直接通、则会有一个恒定的15mA 流过 LED。
如果我使用 PWM 信号来切换 MOS 开关以使 LED 变暗、您是否长期看到 LM1117有任何问题？ 谢谢。
此致、 公里/小时
