This DCDC buck converter module is designed to take an input voltage within 8 to 36 V and provide a fixed 3.7 V output with a maximum current of 3 A. It is intended for applications where a stable 3.7 V rail is required from higher voltage sources, such as 12 V automotive or other DC power supplies. The module is compact and PCBbased, making it easy to integrate into enclosures, projects, or existing boards. Key benefits Fixed 3.7 V output from a wide input range (8–36 V), simplifying design and ensuring predictable voltage for 3.7 V devices Up to 3 A continuous current, suitable for moderate load requirements Compact, PCBbased module that fits easily into small enclosures and project layouts Versatile compatibility with a variety of higher voltage sources, including automotive or bench supplies straightforward integration without the need for complicated external regulation stages Key attributes Functionality: DCDC buck converter module with fixed output Input range: 8 V to 36 V Output: fixed 3.7 V Maximum output current: 3 A Form factor: compact PCBbased module designed for easy integration Construction: standard electronic components on a PCB suitable for common electronic projects Applications and use cases Automotive or bench power conversion: power 3.7 V devices from a 12 V car battery or other 12–24 V sources Prototyping and DIY projects: provide a stable 3.7 V rail for sensors, microcontrollers, and small modules from higher voltage supplies Portable or stationary electronics: integrate into enclosures where a 3.7 V supply is required from a higher voltage input source Technical considerations Ensure the input voltage remains within 8–36 V and that the total load current does not exceed 3 A Adequate cooling and airflow should be considered at higher load levels to maintain stable operation Verify compatible 3.7 V device requirements to confirm this fixed output meets your load needs This description reflects the product's stated brand, model, and features: a 12 V to 3.7 V DCDC buck converter module with 8–36 V input range and 3 A output, offered as a compact, reliable solution for delivering a fixed 3.7 V rail in a variety of applications.