LM2594HVM-5.0 – TEXAS INSTRUMENTS

The LM2594HVM-5.0 is a step-down switching regulator IC from Texas Instruments, specifically designed for high-voltage applications. Its key differentiator is the integrated 5.0V fixed output voltage, eliminating the need for external voltage setting components, simplifying design and reducing board space. Operating from an input voltage range of 4.5V to 40V, it delivers a stable 5.0V output with a typical efficiency exceeding 92%, significantly reducing power dissipation compared to linear regulators. This efficiency is maintained across a wide load current range, typically up to 3A, though peak currents may be slightly higher depending on thermal conditions._x000D_
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The device utilizes a constant-frequency, current-mode control architecture, offering good transient response and line regulation. It features built-in short-circuit protection and thermal shutdown for robust operation. Packaged in a TO-263-5 surface-mount package, it’s suitable for high-power density applications. Common use cases include powering 5V peripherals from higher voltage sources, battery-powered devices requiring regulated 5V, and applications demanding high efficiency in space-constrained designs. The LM2594HVM-5.0’s fixed output voltage and high efficiency make it a superior choice over adjustable regulators or linear solutions where a precise 5V rail is required.