LM2574 Step-Down Switching Regulator 5V 0.5A IC DIP-8

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LM2574 Step-Down Voltage Regulator 5V 0.5A IC DIP-8 The LM2574-5 is a monolithic step-down (buck) switching voltage regulator designed to provide a regulated 5V output while maintaining high efficiency compared to traditional linear regulators. It integrates an internal power switch, oscillator, thermal protection, and current limiting circuitry, significantly reducing the number of external components required for DC-DC power conversion. The device operates at a fixed switching frequency and is optimized for simple and reliable power supply designs. Packaged in an 8-pin DIP format, the LM2574-5 is ideal for embedded systems, microcontroller circuits, industrial controls, battery-powered equipment, telecommunications devices, and general-purpose power supply applications. Its ability to efficiently step down input voltages while minimizing power dissipation makes it a popular choice for designers requiring a compact and cost-effective switching regulator solution. The regulator is capable of delivering up to 0.5A output current and operates using a buck converter topology. Features High efficiency step-down switching regulator design. Fixed 5V output for stable power supply applications. Supports up to 0.5A load current. Reduces external component count for compact designs. Excellent line and load regulation performance. Low heat dissipation due to switching operation. Wide input voltage compatibility for flexible use. Integrated switch control simplifies circuit design. DIP-8 package for easy PCB mounting and replacement. Suitable for industrial and embedded power systems. Specifications Parameter Value Model LM2574-5 Device Type Step-Down Switching Regulator Output Voltage 5V Fixed Maximum Output Current 0.5A Switching Frequency 52kHz Package DIP-8 Mounting Type Through-Hole Topology Buck Converter Output Type Fixed Protection Features Thermal Shutdown, Current Limiting Dimensions Pin Configuration Pin Function 1 Feedback 2 Signal Ground 3 ON/OFF Control 4 Power Ground 5 VIN (Input Supply) 6 NC / Manufacturer Dependent 7 Switch Output 8 NC / Manufacturer Dependent Applications 5V power supplies. Microcontroller systems. Embedded electronics. Arduino-compatible projects. Industrial automation equipment. Telecommunications devices. Battery-powered devices. Portable instruments. Data acquisition systems. Sensor interface circuits. DC power conversion modules. Package Contents 1 x LM2574 Step-Down Voltage Regulator IC 5V 0.5A DIP-8 Datasheet LM2574 Datasheet.