LM2575SX-5.0/E7001840

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575SX-5.0 is a fixed-output step-down switching regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It provides a regulated 5V output with a maximum load current of 1A. The device operates with an input voltage range from 4V to 40V and utilizes a fixed internal switching frequency of 52kHz. It is housed in a TO-263 (D2PAK) surface-mount package, designed for efficient thermal dissipation. The component supports an operating junction temperature range from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch eliminates the need for external high-voltage components.
• Fixed 52kHz switching frequency allows for compact passive component selection.
• Internal frequency compensation simplifies circuit design and reduces external parts count.
• Thermal shutdown protection safeguards the device under overload conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for distributed power systems
• Pre-regulators for switching regulators
• Efficient buck converters for battery-powered applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout compatibility and electrical tolerances. Ensure the supplier provides traceable documentation matching the manufacturer's part identification. Cross-reference the ordering prefix with authorized distribution channels to avoid counterfeit components. Confirm RoHS compliance status if required for your assembly process.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output at 1A is required from an input voltage up to 40V. The TO-263 package is suitable for applications requiring moderate thermal performance without additional heatsinking. Consider the 52kHz frequency for balancing efficiency and component size. Verify that the application does not require synchronous rectification or adjustable output voltages.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of SIMPLE SWITCHER regulators, which are widely used for their ease of design and reliability. The SX variant specifically denotes the surface-mount D2PAK package, distinguishing it from through-hole TO-220 versions. It serves as a cost-effective solution for general-purpose DC-DC conversion in industrial and consumer electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575SX-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2575SX-5.0?

The maximum input voltage is 40V.

Does the LM2575SX-5.0 support adjustable output voltage?

No, this specific part number provides a fixed 5.0V output. Adjustable versions use different suffixes.