LM2575N-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575N-5.0 is a monolithic integrated circuit from the LM2575 series, functioning as a step-down (buck) switching voltage regulator. It provides a fixed 5V output with a maximum load current of 1A. The device supports an input voltage range from 4V to 40V and operates at a fixed internal switching frequency of 52kHz. Packaged in TO-220-5 for through-hole mounting, it includes built-in frequency compensation and requires minimal external components. Key protection features include thermal shutdown and per-cycle current limiting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 5V output configuration with high line and load regulation
• Integrated thermal shutdown and per-cycle current limiting for fault protection
• Built-in frequency compensation simplifies design by reducing external component count
• Supports external shutdown control for low standby power consumption

Voltage Regulators - DC DC Switching Regulators Applications

• General-purpose DC-DC step-down conversion
• Pre-regulator circuits for switching regulators
• Efficient linear regulator replacements

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the package type matches the required through-hole TO-220-5 form factor. Confirm the suffix indicates the fixed 5.0V output variant. Ensure the manufacturer source aligns with Texas Instruments specifications for pinout and electrical characteristics. Check RoHS compliance status if required by project standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required with up to 1A load capacity. It is suitable for applications where through-hole mounting is preferred over surface mount. Consider the 52kHz switching frequency for inductor selection. Verify that the input voltage remains within the 4V to 40V operational range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of simple-to-use step-down switching regulators. The 'N' suffix denotes the TO-220-5 through-hole package, while '-5.0' specifies the fixed 5V output version. The series is designed to replace traditional three-terminal linear regulators, offering improved efficiency and reduced heat dissipation requirements.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575T-5.0/NOPB (Surface Mount Variant)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2575N-5.0?

The maximum input voltage is 40V.

Does the LM2575N-5.0 support adjustable output voltage?

No, the -5.0 suffix indicates a fixed 5.0V output. Adjustable versions use the -ADJ suffix.