LM2575HVT-15/LF03

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVT-15/LF03 is a step-down switching regulator from Texas Instruments, operating with an input voltage range up to 60V. It delivers a fixed output of 15V at a maximum load current of 1A. The device integrates a 150kHz oscillator and features internal frequency compensation for stability. It includes thermal shutdown and current limit protection mechanisms. The component is housed in a robust 5-pin TO-220 package, suitable for high-power applications requiring efficient voltage regulation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch capable of handling input voltages up to 60V
• Fixed output voltage configuration ensuring stable 15V supply without external feedback resistors
• Built-in thermal shutdown and current limiting for enhanced operational safety

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• Pre-regulators for linear regulators
• Efficient buck converters for industrial equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix LF03 against official Texas Instruments documentation to confirm package type and temperature rating. Ensure compatibility with required input/output specifications before procurement. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm that the TO-220 package aligns with your thermal management requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15V output is required from higher input voltages up to 60V. It is ideal for applications needing simple design with minimal external components. Consider the 1A current limit and 150kHz switching frequency for filter component sizing. Evaluate thermal performance given the TO-220 package constraints for your specific enclosure.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of adjustable and fixed-output step-down switching regulators. These devices are designed for high-efficiency DC/DC conversion. The HVT variant specifically supports higher input voltages compared to standard versions. The family is widely used in telecommunications and industrial control systems for reliable power management.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible substitutes like the LM2575T-15 or LM2575S-15 depending on package preference. Verify equivalent electrical characteristics such as input voltage range and output current capability. Ensure thermal resistance values match your heat dissipation strategy.