How reliable is the AMS1117-Linear voltage reduction module for powering microcontrollers?

kasuo

Member
Joined
Aug 29, 2025
Messages
7
Reaction score
0
Hi everyone,


I’ve been using the AMS1117-Linear voltage reduction module in a few small projects to regulate 5V down to 3.3V for ESP32 and sensor modules. It’s compact, easy to wire, and the output seems very clean on a scope — ripple stays around 60 mV even with minor input voltage fluctuations.


I wanted to ask if anyone has long-term experience with this regulator:


  • How well does it handle continuous 1A load without a heatsink?
  • Have you noticed thermal drift or voltage sag under higher current draws?
  • Is it safe to use it as a power source for analog sensors that are sensitive to noise?
  • Any recommendations for input/output capacitor values to further stabilize it in breadboard setups?

I’ve been impressed with how stable it seems for its size, but I’m curious about others’ real-world results, especially in more demanding applications.


Thanks for sharing your insights!
 
Top