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⚡ Power your projects like a pro — small module, big impact!
This HiLetgo 10-pack AMS1117-3.3 DC-DC Step-Down Power Modules deliver a stable 3.3V output at 800mA from a wide 4.2-10V input range. Their compact 8.6mm x 12.33mm footprint and robust PCB design make them perfect for powering ESP8266 and other 3.3V electronics in space-constrained or multi-device setups. The onboard LED provides clear power status feedback, combining reliability with convenience for professional-grade DIY and IoT projects.
| ASIN | B01HXU1NQY |
| Best Sellers Rank | #146,714 in Electronics ( See Top 100 in Electronics ) #1,421 in International Power Adapters |
| Brand | HiLetgo |
| Color | Blue |
| Customer Reviews | 4.4 4.4 out of 5 stars (146) |
| Input Voltage | 10 Volts |
| Item Weight | 0.63 Ounces |
| Manufacturer | HiLetgo |
| Mfr Part Number | 3-01-1101-B |
| Model Number | 3-01-1101-B |
| Number of Outlets | 10 |
| Output Voltage | 3.3 Volts |
| Unit Count | 10 Count |
S**Y
Good product
A**X
This is the same linear voltage regulator that is used on the NodeMCU board to power the ESP8266 with 3.3V from Vin. I use this little board to power electronics that need to communicate with the ESP8266 at 3.3V if they are placed in another enclosure far apart or if the current requirements are too high. The PCB construction is sturdy and the form factor is small enough. The on-board LED gives good feedback so you know when the unit is on, but you may want to remove it if you're running off a battery and want to save power.
J**.
Nice little step down modules for USB 5v to 3.3v DC
Y**A
Bueno
B**L
This is described in the ad as a buck regulator. Looking at the mfg. data sheet, this is untrue. This is a linear 3-pin regulator, not a buck regulator. If you look at the picture you will not see a coil, needed for a buck regulator. That being said, these little guys work great. I have a project using an Esp32S3 , display and an I2S DAC amplifier. The 3.3v regulator was not up to the challenge. Audio output would sometimes cause a reset. I put the regulator between the dev boards 5v line and the audio boards 3.3v input. Problem solved.
Trustpilot
1 week ago
1 month ago