AMS1117 3.3V Voltage Regulator Module
The AMS1117 3.3V Voltage Regulator Module is a compact and efficient power solution that steps down a higher voltage input (4.5V–12V) to a clean, regulated 3.3V output. Built around the widely used AMS1117-3.3 linear regulator, this module is perfect for powering low-voltage components such as Wi-Fi modules (e.g., ESP8266), sensors, logic circuits, and microcontrollers.
Thanks to onboard capacitor filtering, it ensures noise-free, stable voltage output even in environments with fluctuating supply or ripple.
🛠 Technical Details
| Specification | Details |
|---|---|
| Input Voltage | 4.5V – 12V |
| Output Voltage | 3.3V (Fixed) |
| Output Current | Up to 800mA |
| Regulator IC | AMS1117-3.3 |
| Pins | 3-pin header: Vin, GND, Vout |
| Capacitor Filtering | Yes (Input & Output Caps) |
| Thermal Protection | Built-in |
| Dimensions | ~25mm × 11mm |
| Weight | ~3g |
💡 Use Cases & Applications
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🔌 Powering ESP8266 / ESP32 Modules
Ideal when you’re working with IoT modules, which require a clean 3.3V supply. -
🎮 Low Voltage Logic Circuits
Power up 3.3V logic sensors and ICs that aren’t compatible with 5V systems. -
🧪 DIY Embedded Projects
Used with breadboards and prototyping platforms for stable voltage regulation. -
📡 Wireless Modules & Transceivers
Modules like NRF24L01 or LoRa benefit from low-noise power. -
🛠 Power Conversion in Robotics
Convert 2S Li-ion battery packs or USB 5V down to safe 3.3V levels for sensitive electronics.
🛠️ Pair With
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🔌 Power Supplies – Use regulated input voltage for stable performance.
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🔧 Electronics Components – Capacitors, connectors, and headers.
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🧠 NodeMCU Modules – Often used in conjunction with 3.3V regulated sources.
🎥 YouTube Tutorial
📺 How to use AMS1117 3.3V with ESP8266
👉 Watch Tutorial
⚠️ Precautions & Tips
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⚠️ Always ensure your input voltage stays within 12V to avoid overheating.
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🌡️ AMS1117 gets warm under load — add a heatsink if drawing >500mA.
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📏 Keep power lines short to reduce voltage drops.
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🔄 Check polarity before connecting — reverse polarity may damage the regulator.
🏁 Summary & Call-to-Action
Whether you’re building Wi-Fi-enabled gadgets or designing compact sensor nodes, the AMS1117 3.3V Regulator Module is a reliable power partner. Its compact design and compatibility with most development boards make it a go-to for regulated 3.3V power delivery.
👉 Available now at Electroway – power your next project with precision!
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