LM2575S-3.3-EV

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575S-3.3-EV is a fixed-output buck switching regulator IC manufactured by EVVO, part of the LM2575 series. It provides a stable 3.3V output with a maximum current capacity of 2A. The device operates from an input voltage up to 40V and utilizes a 150kHz switching frequency. It features a positive output configuration with a single output channel. The component is housed in a TO-263-5L surface-mount package (TO-263-6/D2PAK variant) and supports an operating junction temperature range from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a fixed 3.3V output for simplified power supply design
• Supports high input voltages up to 40V for versatile application ranges
• Delivers continuous load current up to 2A
• Operates at a standard 150kHz switching frequency

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Pre-regulation for downstream linear regulators
• General-purpose DC-DC conversion in industrial equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation on the component marking against EVVO specifications, as the LM2575 family has extensive historical production across multiple vendors including National Semiconductor. Confirm the suffix 'EV' aligns with the specific EVVO product line documentation rather than generic equivalents. Ensure the TO-263-5L package type matches the required footprint for the target PCB layout.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required without external feedback resistor networks. It is suitable for designs needing input voltages up to 40V and output currents up to 2A. Consider the thermal performance of the TO-263 package for heat dissipation requirements. Verify that the 150kHz switching frequency meets EMI constraints for the specific application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of simple switcher regulators. While originally associated with National Semiconductor, the EVVO variant indicates a specific manufacturer's implementation of this topology. The 'S' suffix typically denotes the surface-mount D2PAK/TO-263 package, and the '-3.3' specifies the fixed output voltage. The '-EV' suffix identifies the specific EVVO product code.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.