LM2575WU-TR

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575WU-TR is a monolithic integrated circuit from the LM2575 series, functioning as a step-down switching voltage regulator. It provides all active functions necessary for a buck converter, including an internal oscillator and fixed-frequency current-mode control. The device operates with an input voltage range up to 40V and delivers an output current of up to 3A. It features a wide input voltage range, low dropout operation, and high efficiency typical of switching regulators.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Internal fixed-frequency oscillator allows for simplified external component selection
• Current-mode control architecture ensures fast transient response and inherent cycle-by-cycle current limiting
• Integrated freewheeling diode simplifies circuit design and reduces component count

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulators for post-LDO linear regulators
• Efficient step-down conversion for battery-powered applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'WU' indicates the plastic package type and 'TR' denotes tape-and-reel packaging. Confirm the operating temperature range matches your application requirements. Ensure compatibility with the required output voltage variant, as the base part number may have multiple voltage options.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-current step-down solution is needed. Consider the thermal performance of the TO-263 package for heat dissipation. Verify that the input voltage does not exceed the maximum rating during all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of simple-to-use step-down switching regulators. It is designed to replace traditional linear regulators where efficiency and heat dissipation are concerns. The family includes variants with different fixed output voltages and adjustable versions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio. Verify that substitute parts maintain similar current handling capabilities and input voltage ranges. Ensure thermal characteristics are comparable for the intended enclosure.