LM2576R-15

Voltage Regulators - DC DC Switching Regulators Overview

The TAEJIN LM2576R-15 is a monolithic integrated circuit designed for step-down switching regulator applications. It operates as a buck converter capable of driving a 3.0A load with excellent line and load regulation. The device features a fixed 15V output voltage and utilizes a 52kHz internal oscillator. It supports a wide input voltage range, typically from 4V to 40V. The component includes thermal shutdown and current limit protection mechanisms.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 15V output configuration
• 3.0A continuous output current capability
• 52kHz fixed frequency internal oscillator
• Integrated thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators
• Positive to negative converters (buck-boost)
• Power supplies for battery chargers

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific manufacturer source when sourcing this part number, as it may be produced by various semiconductor companies under license or equivalent specifications. Confirm the package type matches the required PCB footprint, as TO-220-5 is common but surface mount variants exist. Ensure the datasheet confirms the 15V fixed output variant rather than adjustable or other voltage versions within the LM2576 series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a robust 3A buck converter with minimal external components. The fixed 15V output simplifies design compared to adjustable versions. Consider the operating temperature range and input voltage requirements to ensure compatibility with the target power supply architecture. Verify that the 52kHz switching frequency aligns with inductor selection guidelines for optimal efficiency.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM2576 series represents a family of simple switcher regulators widely used in industrial and consumer electronics. TAEJIN Technology manufactures these power ICs, offering cost-effective solutions for DC-DC conversion. This specific model belongs to the standard LM2576 line, distinct from the higher voltage LM2596 series which operates at 150kHz.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Equivalent parts include the LM2576HV-15 for higher input voltage applications and the LM2596-15 for higher switching frequency designs. Cross-reference with National Semiconductor or onsemi datasheets for pin-compatible alternatives.