A compact boost voltage regulator module (Model: Y1) that converts a 12V DC supply to a regulated 19V DC output with a maximum output current of 4A. Designed for applications where a higher DC voltage is needed from a 12V source, this nonisolated converter provides a reliable way to power 19V equipment when only 12V power is available. Key benefits Converts common 12V sources (battery, car, 12V power supply) into a steady 19V output so you can run 19V devices without replacing the source. Delivers up to 4A of output current to support higherdemand devices within the module's ratings. Nonisolated boost design keeps the circuit simple and efficient for many automotive, mobile, and lowrisk industrial applications. What it does and why you need it Solves the problem of powering 19V electronics from 12V systems: eliminates the need for a separate 19V power supply by stepping up existing 12V power. Useful for installations where space and wiring simplicity matter and where isolation from the input is not required. Ideal when costeffective, compact DCDC conversion is required and when the device being powered can accept a nonisolated supply. Key attributes Functionality: Stepup (boost) DCDC converter that takes 12V input and provides a regulated 19V output. Output capability: Up to 4A maximum output current (observe continuous load limits and thermal considerations). Model: Y1 voltage regulator boost power converter. Isolation: Nonisolated design — input and output share a common reference (do not use where galvanic isolation is required). Compatibility: Works with 12V DC sources and with devices that require a 19V DC input and draw no more than 4A. Performance considerations: Provides regulated 19V output under rated conditions; observe device current draw and environmental/temperature constraints. Typical applications / use cases Automotive and mobile power: Power 19V electronics from a vehicle 12V battery or accessory outlet when a 19V adapter is not available. Network and communications equipment: Run routers, switches, or modems that accept 19V DC from a 12V source in field or vehicle installations. Bench and field testing: Provide a 19V supply for testing or repairing 19V devices where a dedicated 19V bench supply is not convenient. Safety and installation notes Nonisolated design: Because input and output share a common reference, do not use this module where isolation is required (medical equipment, hazardous circuits, or when ground separation is mandated). Match device requirements: Confirm the target device accepts 19V and draws no more than 4A. Exceeding rated current can cause overheating or failure. Use proper wiring, fusing, and heat dissipation measures appropriate for the load and environment. Verify polarity and secure connections before powering devices. What to check before Ensure your 12V source can supply the converter plus the connected load. Confirm the target device specifications: 19V input and current requirement within the 4A limit. Confirm a nonisolated supply is acceptable for your application. This Y1 12V to 19V 4A boost regulator offers a direct, practical solution when you need to step up 12V DC to 19V DC with a rated 4A output and where a nonisolated converter is suitable.