AMS1117 3.3V Power Supply Module is a compact and efficient linear voltage regulation solution designed to deliver a stable 3.3V DC output from higher input voltages. Widely used in embedded systems, IoT devices, development boards, and DIY electronics projects, this module ensures safe and consistent power delivery to sensitive components such as microcontrollers, sensors, RF modules, and logic circuits.
Built around the popular AMS1117 low-dropout (LDO) regulator, this module simplifies power management by integrating essential filtering capacitors and pin headers for easy prototyping and rapid deployment. Whether you are working on Arduino, ESP8266, ESP32, Raspberry Pi peripherals, or custom PCB designs, the AMS1117 3.3V power module provides dependable voltage regulation in a compact form factor.
🔧 Key Features
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Stable 3.3V Output: Delivers a regulated and consistent 3.3V supply suitable for sensitive digital and analog electronics.
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Wide Input Voltage Range: Accepts input voltages typically from 4.5V to 12V DC, making it compatible with batteries, adapters, and bench power supplies.
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High Output Current Capability: Supports up to 800mA (with proper heat dissipation), ideal for powering microcontrollers and communication modules.
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Low Dropout Voltage: Operates efficiently with a dropout voltage of approximately 1.1V, enabling use with low-voltage power sources.
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Built-in Filtering Capacitors: Ensures reduced output ripple and improved voltage stability.
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Compact and Breadboard-Friendly: Small PCB footprint with pin headers for easy integration into breadboards and prototyping boards.
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Thermal and Current Protection: Integrated protection safeguards against overheating and overcurrent conditions.
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Plug-and-Play Design: No additional components required — ready to use out of the box.
📋 Specifications
| Parameter | Value |
|---|---|
| Regulator IC | AMS1117-3.3 |
| Input Voltage Range | 4.5V – 12V DC |
| Output Voltage | 3.3V ±1% |
| Maximum Output Current | Up to 800mA (with heatsinking) |
| Dropout Voltage | ~1.1V at full load |
| Efficiency | Linear regulation (depends on Vin–Vout) |
| Ripple Rejection | High PSRR for stable output |
| Operating Temperature | -40°C to +125°C (IC rating) |
| PCB Size | Approx. 22mm × 17mm |
| Mounting Type | Through-hole headers |
| Protection Features | Thermal shutdown, current limiting |
🛠️ Applications
The AMS1117 3.3V Power Supply Module is ideal for a wide range of electronics projects and industrial applications:
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Microcontroller Power Supply: Powers ESP8266, ESP32, STM32, Arduino (3.3V versions), and other low-voltage MCUs.
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IoT and Wireless Modules: Suitable for Wi-Fi, Bluetooth, LoRa, Zigbee, GPS, and RF communication modules.
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Sensor Interfaces: Provides clean 3.3V rails for temperature, pressure, motion, humidity, and gas sensors.
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Embedded Systems Prototyping: Excellent for breadboard testing and quick circuit development.
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Robotics and Automation: Used in control boards, motor driver logic sections, and signal conditioning circuits.
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DIY Electronics and Maker Projects: Perfect for students, hobbyists, and educators building small-scale electronics.
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Industrial Control Circuits: Reliable voltage regulation for low-power control electronics and logic modules.
⭐ Why Choose the AMS1117 3.3V Power Supply Module?
When working with modern electronics, many components require precise 3.3V regulated power, and unstable voltage levels can damage sensitive ICs or cause system instability. The AMS1117 module eliminates complexity by offering a ready-to-use solution that ensures safe and reliable voltage delivery with minimal external wiring.
Compared to switching regulators, this linear regulator module provides low noise and ripple, making it ideal for analog circuits, RF modules, and communication devices where signal integrity matters. Its compact size, cost-effectiveness, and ease of use make it one of the most popular voltage regulator modules in prototyping and embedded development environments.
Additionally, the module’s wide input voltage tolerance allows designers to power it directly from 5V USB supplies, 7.4V batteries, 9V adapters, or bench supplies, making it versatile across many power scenarios.
The AMS1117 3.3V Power Supply Module is a dependable, efficient, and easy-to-use voltage regulation solution for engineers, students, and electronics enthusiasts. With stable output performance, compact design, built-in protection, and wide compatibility with popular development platforms, it is an essential power module for any electronics toolkit.
Whether you are building IoT devices, embedded systems, robotics projects, or custom PCBs, this 3.3V voltage regulator module ensures your circuits receive clean and reliable power — helping your projects perform at their best.
Package Includes:
1 x AMS1117 3.3V Power Supply Module
FAQ
1. Where can we buy this AMS1117 3.3V Power Supply Module?
This product is available online https://aiiottech.in/product/ams1117-3-3v-power-supply-module/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103
2. When can I get this AMS1117 3.3V Power Supply Module after placing the order?
RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.
Video Link: 5V to 3.3V Arduino Voltage Converter AMS1117
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