AC to DC Power Supply Module – 220V to 3.3V 5W Buck Converter for DIY & Electronics Projects

Tired of bulky transformers eating up PCB space? The amiciKart AC to DC Power Supply Module converts 100V–240V AC mains power directly to a clean, stable 3.3V DC output — all in a compact, PCB-mountable form factor built for serious makers and engineers.

This 5W buck converter uses a high-frequency switching regulator to deliver a rock-solid 3.3V DC at up to 1.5A, achieving ≥70% efficiency at 220V AC full load. That means less heat, lower power bills, and a longer lifespan for your project. Unlike traditional transformer-based supplies, this module eliminates the need for bulky diodes and large capacitors — shrinking your BOM and your board footprint simultaneously. Built-in short-circuit protection with automatic recovery means a wiring mistake won't fry your circuit; just fix the fault and the module resumes normal operation on its own.

Designed for Indian mains voltage (220V AC) yet compatible with global inputs from 100V to 240V, this module slots seamlessly into smart home controllers, IoT nodes, automation panels, communication equipment, and custom PCB designs. Whether you're a hobbyist prototyping your first ESP32 project or an engineer building a production-ready device, this converter gives you industrial-grade isolation and reliability at a fraction of the cost.

Backed by a 1-year warranty and amiciKart's dedicated Indian support team (📞 980 970 9898 | ✉️ care@amicikart.com), you're covered long after your build goes live. Order before 2 PM for same-day dispatch — delivered anywhere in India with free shipping. ⚡

• 🔋 Stable 3.3V DC Output — Switching regulator maintains rock-solid 3.3V despite input fluctuations across 100V–240V AC, perfect for sensitive electronics
• ⚡ High Efficiency, Low Heat — Achieves ≥70% efficiency at 220V AC full load, minimising heat generation and cutting energy waste for long-term reliability
• 🛡️ Auto-Recovery Short-Circuit Protection — Built-in protection instantly safeguards your circuit and automatically resumes normal operation once the fault is cleared
• 🔧 Compact PCB-Mount Design — Easily integrates into smart home devices, automation systems, communication equipment, and DIY PCB builds without bulky transformers or diodes
• 🌍 Wide Input Compatibility — Accepts 100V–240V AC input (1.5A output, 5W rated), making it suitable for Indian mains as well as international power standards
• 🚚 Free Pan-India Shipping | Same-Day Dispatch | COD Available — Order before 2 PM for same-day dispatch; delivered in 3–5 business days anywhere in India
• ✅ 1-Year Warranty with Indian Support — Backed by amiciKart's 1-year warranty and 30-day easy returns; reach us at 980 970 9898 or care@amicikart.com

Specifications:

Input Voltage: 100V-240V AC
Output Voltage: 3.3V DC
Output Current:1.5A
Rated Power: 5W
Input High Voltage Efficiency Vin=220VAc，output full-load≥ 70 %