How to Build a 3.3V Voltage Regulator

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Here are the instructions to wire a stable AMS1117-3.3 voltage regulator properly. This can power an ESP8266 or any 3.3V micro-controller reliably supporting current draws up to 1A.

Hardware

• •AMS 1117-3.3
• •10 uF Electrolytic Capacitor
• •104 Ceramic Capacitor

Wiring

AMS1117-3.3 (right to left)

• •Pin 1: GND
• •Pin 2: Vout
• •Pin 3: Vin

Connections

• •5-12V -> Vin
• •GND -> GND
• •10 uF Electrolytic Capacitor +ve -> Vout
• •10 uF Electrolytic Capacitor GND -> GND
• •104 Ceramic Capacitor +ve -> Vin
• •104 Ceramic Capacitor GND -> GND