AMS1117 3.3V Step-Down Power Supply Module

Overview

A small linear regulator module built around the AMS1117 chip, converting a higher input voltage down to a stable 3.3V output.

Key Specs

Features

• Simple, low-noise linear regulation
• Compact, low-cost solution for small 3.3V loads

Compatible With

Any 3.3V-logic project (ESP32, ESP8266, sensors)

Use Cases

• Powering a 3.3V module from a 5V or higher source

FAQ

How is this different from a buck (switching) converter? It's a linear regulator — simpler and cleaner output, but less efficient at higher current draw, with the difference dissipated as heat.