LM2575HVT-5.0/LB03

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVT-5.0/LB03 is a Texas Instruments SIMPLE SWITCHER 1A step-down voltage regulator designed for through-hole mounting in TO-220-5 packages with formed leads. It provides a fixed positive output of 5V at up to 1A load current, supporting input voltages from 4V to 60V. The device operates within an extended temperature range of -40°C to +125°C and features internal frequency compensation for minimal external component usage.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch capable of handling input voltages up to 60V
• Fixed 5V output configuration eliminates the need for external feedback resistors
• Internal frequency compensation simplifies design by reducing required external components

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for distributed power systems
• Pre-regulators for switching regulators
• Efficient straight-through DC/DC converters

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix LB03 against official Texas Instruments documentation to confirm lead form and packaging details. Ensure the procurement channel sources genuine components compatible with the TO-220-5 through-hole package. Cross-reference the part number with the manufacturer's active status to confirm production availability before finalizing orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from a wide input voltage range up to 60V. The through-hole TO-220-5 package is suitable for applications requiring robust mechanical mounting or integrated heat dissipation. Consider the 1A continuous output current limit and the 52kHz switching frequency when designing the external inductor and capacitor network.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of SIMPLE SWITCHER regulators, which are known for ease of use and flexibility. The HVT designation indicates a high-voltage variant optimized for higher input voltage applications compared to standard versions. The family supports both adjustable and fixed output configurations in various thermal packages.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include the LM2575T-5.0/NOPB and LM2575HVT-5.0/LF03. Verify pinout compatibility and thermal performance characteristics when transitioning between different package variants or manufacturing revisions within the same functional family.