Features: High Efficiency bucking Module delivers 97.5%conversion rate and compact design for optimized power utilization in space limited automotive/electronic systems. Supports 4.5V-20V input with adjustable outputs (0.8-17V) or fixed voltages (1.8V-12V), featuring overload protections and PCB based durability for versatile circuit integration. Designed for automotive engineers, electronics enthusiasts, and developers needing reliability voltages regulation in drones, portable gadgets, or vehicle power systems. Ideal for compact installations like car dashboards, robotics control boards, and industrial sensors requiring stable power conversion with minimal heat dissipation. Clear pin labeling simplifies integration for Raspberry , while its lightweight build ensures seamless compatibility with PCB prototyping and embedded device upgrades. Specifications: Component: PCB Size: Approx.20x10mm/0.78x0.39inch Input voltages: DC4.5-24v voltages output: 1.8V 2.5V 3.3V 5V 9V 12V Output Current: 3A (most), must strengthen heat dissipation Transform Efficiency: 97.5%(most) (6.5 to 5V 0.7A) switching Frequency: 500KHz Output Ripples Waves: 20mV (12V to 5V 3A) 20m bandwidth Operating voltages: -40℃-85℃ StaticCurrent: 0.85MA Soldering Space: 2.54mm Application scenario: Suitable for LED lighting, navigation instruments, sound systems, monitoring equipment and other electronic products. Package Includes: 10pcs Step Down Module note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.