The 12V to 4.2V DCDC Buck Converter is a fixed output power module that accepts an input in the range of 8V to 36V and delivers a steady 4.2V output at up to 2A. Model: 12V to 4.2V DCDC Buck Converter. This device is designed to provide a reliable 4.2V rail from higher voltage sources, making it suitable for applications that require a precise 4.2V supply from automotive, industrial, or other DC power sources. Key benefits Fixed 4.2V output from an 8V to 36V input range, enabling a stable supply for loads that require exactly 4.2V. Capable of delivering up to 2A, supporting moderate power requirements without the need for additional regulation. Simple integration into systems powered by common DC rails such as 12V or 24V sources, reducing design complexity. Provides a dedicated 4.2V supply for devices and circuits that operate at 4.2V, including Liion related applications, from higher voltage sources. Key attributes Functionality: DCDC buck converter with fixed 4.2V output and input range of 8V–36V. Compatibility: Suitable for use with power supplies within the specified input range, including typical automotive and industrial DC sources. Performance: Delivers up to 2A of continuous current at a regulated 4.2V output from supported inputs. Use cases Case 1: Convert a 12V automotive or similar 12V power source to a stable 4.2V rail for loads that require 4.2V, such as Liion related test circuits. Case 2: Power a 4.2V load from higher voltage industrial supplies (for example 24V rails) in a control system or prototype hardware setup. Case 3: Create a dedicated 4.2V power source in a lab or development environment to simulate batteryrelated circuits that operate at 4.2V from a variable DC input. This description preserves the brand, specifications, model, and features implied by the product title, providing a clear and credible overview of the 12V to 4.2V DCDC Buck Converter as a fixedoutput regulator from 8V–36V input to 4.2V at up to 2A.