AMS 1117 3.3V Power Supply Module

Description

The AMS1117 3.3V Module is a compact circuit board designed around the popular AMS1117-3.3 linear voltage regulator IC.¹

 Core Function

Its main purpose is to step down a higher DC input voltage to a stable, fixed 3.3V DC output.² This voltage is critical for powering many modern, low-power microcontrollers (like some Arduinos or ESP boards), RF modules (e.g., Bluetooth, Wi-Fi), and various sensors that operate on $3.3 \text{V}$ logic.