LM2575D2T-15R4

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575D2T-15R4 is a step-down switching regulator from onsemi, operating at a fixed 52 kHz frequency. It integrates a 3.0A power switch and includes internal compensation for stability. The device delivers a regulated 15V output with an input voltage range up to 40V. Key electrical specifications include a typical efficiency of 70% under standard load conditions and a maximum quiescent current of 8mA. The component supports continuous output current capability and features thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-current power switch rated for 3.0A operation
• Includes internal frequency compensation for simplified external circuit design
• Provides built-in thermal shutdown protection for enhanced reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation modules
• Standard 5V to 12V step-down converters
• Efficient pre-regulator circuits for linear regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix R4 against official datasheets to confirm tape-and-reel packaging specifications and quantity per reel. Ensure the D2 package marking aligns with the manufacturer's latest identification standards. Cross-reference the date code and lot number with supply chain documentation to confirm authenticity and traceability before final procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15V output is required from higher input voltages. Consider the 3.0A current limit and 52kHz switching frequency for inductor sizing. Evaluate thermal performance requirements given the D2 package constraints. Verify that the application does not require adjustable output voltages or synchronous rectification for higher efficiency needs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of simple-switcher regulators. It shares architectural similarities with other variants in the series but differs in output voltage configuration. The D2T designation indicates a specific surface-mount package variant designed for automated assembly processes and improved thermal dissipation compared to through-hole alternatives.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible substitutes may include other LM2575 variants with different output voltages if voltage adjustment is feasible via external resistors. Check equivalent parts from other manufacturers such as Texas Instruments or STMicroelectronics for functional compatibility. Verify that alternative components meet the same 3.0A current rating and 40V input voltage limits.