The LM3675 is a high-efficiency DC-DC step-down converter designed to deliver up to 600mA of continuous output current from input voltages up to 5.5V. Packaged in a compact SOT-23-5, it offers fixed output voltages (1.8V, 2.5V, 3.0V, 3.3V options) and features low quiescent current and fast transient response. With its 95% efficiency, the LM3675 is ideal for battery-powered devices, IoT systems, portable consumer electronics, and embedded controllers. It includes internal synchronous rectification, short-circuit protection, thermal shutdown, and soft-start for safe and stable operation.