Ultra-Mini DC-DC Buck Converter Module | 5V-30V to Fixed 3.3V/5V/9V/12V Step-Down Power Supply

Tiny Size, Massive Stability. Tired of bulky power modules taking up all your project space? Our Ultra-Mini Buck Converter is the perfect solution for tight builds. With a wide input range up to 30V and rock-solid fixed output options, it’s the most reliable way to power your microcontrollers, sensors, and LEDs without the guesswork of adjustable potentiometers.

• Space-Saving Design: One of the smallest step-down modules on the market, ideal for drones, wearables, and compact IoT devices.

• Fixed Output Precision: No more fiddling with a screwdriver. Choose your specific voltage (3.3V, 5V, 9V, or 12V) for a consistent, safe output that won't drift.

• High Efficiency: Advanced synchronous rectification technology ensures minimal heat generation and maximum battery life for your portable projects.

• Wide Input Voltage: Handles anything from 5V to 30V, making it perfect for 12V automotive systems or 24V industrial power supplies.

• Microcontrollers: Powering 3.3V ESP32 or 5V Arduino boards from a 12V/24V battery.

• RC & Drones: Clean power for FPV cameras and flight controllers.

• Smart Home: Integrating low-voltage sensors into existing higher-voltage circuits.

• Automotive: Stepping down car battery voltage for USB chargers or dash cams.