Product Overview
The AMS1117-3.3V Voltage Regulator Module is a compact linear power supply designed to convert a higher DC input voltage into a stable 3.3V DC output. Based on the AMS1117-3.3 Low Dropout (LDO) Voltage Regulator, the module provides up to 800mA output current and is widely used for powering 3.3V microcontrollers, sensors, wireless modules, and embedded systems. It features low output noise, simple circuitry, and built-in current limiting and thermal shutdown for reliable operation.
Key Features
Fixed 3.3V DC regulated output
Input voltage range: 4.5V–12V DC (recommended)
Output current up to 800mA
Low Dropout (LDO) linear regulator
Low output noise and ripple
Built-in thermal shutdown protection
Built-in current limiting
Compact SOT-223 package
Simple design requiring minimal external components
Ideal for 3.3V digital and embedded applications
Technical Specifications
Parameter | Specification |
Input Voltage | 4.5V–12V DC (Recommended) |
Output Voltage | 3.3V DC ±2% |
Maximum Output Current | Up to 800mA* |
Regulator Type | Low Dropout (LDO), Fixed Output |
Dropout Voltage | Approximately 1.3V @ 800mA |
Quiescent Current | Typically 2–10mA |
Protection | Thermal Shutdown, Current Limiting |
Package | SOT-223 |
Operating Temperature | -40°C to +125°C (Junction) |
Applications
ESP8266 and ESP32 Development Boards
STM32, ARM, and AVR Microcontrollers
Raspberry Pi Pico
3.3V Sensors and Modules
Wi-Fi and Bluetooth Modules
GPS and LoRa Modules
SD Card Interfaces
Embedded Systems
IoT Devices
Portable Electronic Projects
Package Includes
1 × AMS1117-3.3V Voltage Regulator Module