Mini DC-DC 3A power step-down module buck converter - What it is: A compact mini buck converter designed for DIY mobile power supply and monitor power supply applications. It provides a stable 5V output from a higher voltage input. - Key specs: - Input voltage: 5-30V (must be higher than the output) - Output voltage: 5V - Output current: Up to 3A (maximum) - Why you need it: - Converts a wide range of higher voltage sources to a fixed 5V rail for 5V devices - Simple, compact solution to create portable or bench 5V power sources - Easy integration into small projects thanks to its mini form factor - Benefits: - Fixed 5V output simplifies circuit design and compatibility - Suitable for use with car batteries, batteries, solar panels, or bench supplies that exceed 5V - Provides a reliable 5V supply for low to moderate current devices - Important notes: - Ensure the input voltage is between 5V and 30V and is higher than 5V - Maximum output current is 3A; plan your load accordingly - Use scenarios: - Power a 5V microcontroller, sensors, or development boards from a car or portable battery (12V, 24V, or other higher voltage source) - Create a compact 5V monitor power supply from a higher voltage source for small displays - Build a portable 5V rail for DIY projects and mobile electronics from various 9-30V sources