LM2576D2TR4-5G

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576D2TR4-5G is a monolithic integrated circuit step-down switching regulator from the LM2576 series, manufactured by onsemi. It operates as a buck converter with a fixed 5V output and supports up to 3A load current. The device accepts an input voltage range of 7V to 40V and utilizes a 52kHz internal oscillator for pulse width modulation control. Packaged in a surface-mount D2PAK-5 (TO-263) configuration, it functions within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 52kHz fixed-frequency oscillator eliminates external timing component requirements
• Internal power switch rated for 3.0A continuous load operation
• Built-in thermal shutdown and current limit protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load DC/DC conversion modules
• Pre-regulator stages for linear regulators
• Efficient battery-powered systems requiring step-down topology

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'R4' against the manufacturer datasheet to confirm tape-and-reel packaging specifications. Ensure the ordering part number matches the required package variant and compliance standards. Cross-reference the manufacturer's official documentation for any recent product change notices or lifecycle status updates prior to final procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from a higher voltage rail without external feedback resistors. The D2PAK-5 package provides adequate thermal dissipation for high-current applications compared to smaller packages. Consider the 52kHz switching frequency trade-offs regarding filter component size versus electromagnetic interference levels.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 family of simple-to-use step-down switching regulators. The 'D2T' designation indicates the D2PAK surface-mount package, while 'R4' specifies the reel quantity or packaging format. The '-5G' suffix denotes the fixed 5V output version with lead-free and halogen-free compliant construction.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible alternatives include the LM2576D2T-5G. Other manufacturers offer equivalent parts such as the Texas Instruments LM2576DDAR or Microchip LM2576WT, though verification of electrical parameters and package dimensions is required.