LM2575-5.0BT

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575-5.0BT is a monolithic integrated circuit step-down switching regulator manufactured by Microchip Technology, formerly Micrel. It provides a fixed 5V output capable of driving a 1A load with excellent line and load regulation. The device operates from an input voltage range of 4V to 40V at a typical switching frequency of 52kHz. It utilizes TO-263-5 (D2PAK) surface-mount packaging and supports an operating junction temperature range up to 125°C. Internal features include frequency compensation, current limiting, and thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates internal frequency compensation and a fixed-frequency oscillator to minimize external component requirements.
• Includes built-in current limit and thermal shutdown circuits for enhanced system reliability under fault conditions.
• Offers high efficiency compared to linear regulators, reducing heat dissipation needs in compact designs.

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient buck regulators for industrial power systems
• Pre-regulators for linear post-regulator stages
• Positive-to-negative converter topologies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'BT' against official Microchip documentation to confirm package type and tape-and-reel availability. Ensure compatibility with RoHS standards if required by your manufacturing process. Cross-reference datasheets for any recent product change notices affecting pinout or electrical characteristics.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from a 4V to 40V input source. It is suitable for applications needing 1A continuous current with minimal external parts. Consider the TO-263-5 package for surface-mount assembly where moderate thermal performance is sufficient without additional heatsinking.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of simple, efficient step-down switching regulators. The series is widely used as a drop-in replacement for traditional three-terminal linear regulators, offering significant improvements in thermal management and efficiency for DC-DC conversion tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2592HVS-5.0/NOPB is listed as a similar alternative by distributors, though it may differ in package or thermal characteristics. Verify pin compatibility and electrical specifications before substitution.