LM2576HVT-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576HVT-3.3 is a monolithic integrated circuit step-down switching regulator from the LM2576 series, manufactured by TAEJIN Technology Co. It provides a fixed 3.3V output with a guaranteed 3.0A load current capability. The device operates with a wide input voltage range and utilizes a 52kHz fixed-frequency internal oscillator. Designed for high efficiency, it requires only four external components and includes thermal shutdown and current limit protection features.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 3.3V output voltage with excellent line and load regulation
• Capable of driving a 3.0A load with standard inductors
• Includes thermal shutdown and cycle-by-cycle 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
• Power supply for battery chargers

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the component is sourced directly from TAEJIN Technology or authorized distributors to ensure authenticity. Confirm the package type matches design requirements, as variations exist within the LM2576 family. Check for RoHS compliance status if required by specific manufacturing standards. Ensure the part number suffix corresponds to the correct packaging format before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required at up to 3.0A with minimal external circuitry. It is suitable for applications needing high efficiency and simple design compared to linear regulators. Consider the 52kHz switching frequency for inductor size trade-offs. Ensure the input voltage range aligns with the system's power source capabilities.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of switching regulators, which are widely used for buck converter designs. The 'HV' designation typically indicates a higher voltage input capability compared to standard versions. The 'T' suffix often denotes a specific temperature grade or package variant within the manufacturer's lineup. It serves as a direct replacement for similar legacy parts in existing designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include LM2576HVT-3.3/NOPB from Texas Instruments. Other equivalents may be found among manufacturers offering 3A buck converters with similar pinouts and electrical characteristics. Verify pin compatibility and thermal performance before substitution.