LM4576T-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM4576T-5.0 is a fixed-output buck switching regulator IC manufactured by TAEJIN Technology. It provides a stable 5V output with a maximum load current of 3A. The device operates from an input voltage range of 8V to 40V and utilizes a 300kHz switching frequency for efficient power conversion. Housed in a TO-220-5 surface-mount package, it integrates internal compensation and protection features suitable for point-of-load applications requiring high efficiency and compact design.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous buck converter architecture for high efficiency
• Fixed 5V output voltage with 3A continuous current capability
• Wide input voltage range supporting 8V to 40V sources
• Built-in thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial control systems
• Power supply stages for embedded computing modules
• Battery-powered equipment requiring step-down conversion
• Telecommunications infrastructure power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific manufacturer designation, as TAEJIN Technology may distribute products originally designed by HTC Korea. Confirm the package variant matches the required TO-220-5L footprint. Ensure the fixed 5.0V output specification aligns with system requirements, as adjustable variants exist within the same family. Cross-reference datasheet revisions for any changes in pinout or electrical characteristics before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required rather than an adjustable configuration. The 3A current rating suits moderate-power loads without external heat sinking in typical ambient conditions. Consider the 300kHz frequency for balancing component size and efficiency. Verify that the 8V minimum input voltage meets the lowest expected supply rail under all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM4576 series of DC/DC converters, which includes adjustable (ADJ) and fixed voltage variants. The 'T' suffix typically denotes the TO-220-5 package style, while '5.0' specifies the fixed output voltage. The series is designed for general-purpose step-down applications, offering a balance of performance and cost-effectiveness for commercial and industrial electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other 3A buck regulators with similar input ranges and fixed 5V outputs. Check pin compatibility for TO-220-5 packages. Variants like LM4576R-5.0 offer different packaging but identical electrical functions. Ensure replacement parts maintain the same switching frequency and protection features to avoid redesigning control loops.