MP1584EN Ultra-Small 3A Fixed 3.3V DC-DC Step-Down Buck Converter

The Fixed 3.3V Edition of the MP1584EN buck converter is a high-frequency power module optimized for modern low-voltage electronics. By replacing the adjustable potentiometer with high-precision fixed resistors, this module provides a rock-solid 3.3V output that is immune to vibration-induced voltage drift, making it ideal for flight controllers, wireless modules (ESP8266/ESP32), and advanced sensor arrays. Despite its tiny footprint, it handles input voltages up to 28V and delivers up to 3A of current with high efficiency. The 1.5MHz switching frequency allows for superior noise filtering, ensuring a clean power supply for sensitive digital logic.

Key Features:

• Fixed 3.3V Output: Precision factory-set voltage eliminates the risk of over-voltage damage to sensitive 3.3V components.
• High-Current 3A Output: Capable of powering multiple high-drain peripherals or wireless transceivers.
• Synchronous Rectification: Achieves up to 96% efficiency, significantly reducing heat buildup compared to linear regulators.
• Compact Size: Measuring only 22x17mm, it is designed for weight-sensitive and space-constrained DIY projects.
• Wide Input Range: Efficiently steps down power from 12V, 18V, or 24V battery systems.
• Integrated Safety: Features built-in thermal shutdown and cycle-by-cycle current limiting.

Package Includes:

1 x MP1584EN Ultra-Small 3A Fixed 3.3V DC-DC Step-Down Buck Converter