LM2576D2TR4-005

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576D2TR4-005 is a monolithic integrated circuit from the LM2576 series, functioning as a step-down switching regulator (buck converter). Manufactured by onsemi, this device provides a fixed output voltage of 5V with a maximum load current capability of 3A. It operates within an input voltage range of 4V to 40V and utilizes a fixed internal oscillator frequency of 52kHz. The component is housed in a surface-mount TO-263 package (D2PAK-5) and is designed for operation across a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a fixed-frequency oscillator and frequency compensation to minimize external component requirements
• Includes built-in thermal shutdown and cycle-by-cycle current limiting for fault protection
• Supports low-power standby mode via TTL shutdown capability

Voltage Regulators - DC DC Switching Regulators Applications

• Simple and efficient step-down DC-DC power supplies
• Pre-regulators for linear regulators to improve efficiency
• On-card regulation for distributed power systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TR4' against official manufacturer documentation to confirm tape-and-reel packaging specifications. Ensure the part number matches the exact voltage variant required, as the LM2576 series includes multiple fixed output options. Confirm RoHS compliance status through the latest datasheet revision notes provided by onsemi.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-current buck converter is needed with minimal external parts. The 52kHz switching frequency requires larger inductors compared to modern high-frequency alternatives. Consider the thermal performance in the TO-263 package for heat dissipation requirements under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 family of switching regulators, widely recognized for their simplicity and reliability in industrial applications. The D2TR4 designation indicates a specific reel configuration for automated assembly processes. The series is known for replacing traditional linear regulators to reduce heat generation in power conversion circuits.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible replacements include other manufacturers' versions of the LM2576-5.0 such as the Texas Instruments LM2576T-5.0/NOPB. Verify that substitute components maintain the same 3A current rating and 5V fixed output specification.