LM2576S-5.0
National Semiconductor
Needs validationlow risk
A widely-sourced alternative from a major manufacturer with a superior input voltage range (from 4.5V).
Best Alternatives to LM2576R-5.0
The LM2576R-5.0 is a popular 3A, 5V step-down (buck) switching regulator in a TO-263-5 package. Several cross-vendor alternatives and parts with similar functions but different packages or parameters are available for replacement.
AI replacement insight
Electrical risklow
Low if sticking to the LM2576 family from reputable sources.
Package risklow
Low if selecting the specified TO-263-5 package.
Sourcing risklow
This is a widely second-sourced part, making sourcing generally easy.
Can it be replaced directly?
Yes, the LM2576S-5.0 from manufacturers like Texas Instruments is a common direct replacement for the LM2576R-5.0, offering the same function, package, and pinout.
Best replacement path
Use a cross-vendor LM2576S-5.0 in a TO-263-5 package from a reputable manufacturer like Texas Instruments.
Main risk
The main risk is using a part from a less-known manufacturer without verifying its datasheet, as minor parametric differences (e.g., input voltage range, efficiency) could affect performance.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | LM2576R-5.0 | LM2576S-5.0 | LM2576HVR-5.0 | LM2576S-5.0RG | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TO-263-5 | TO-263-5L | TO-263-5 | TO-263-5 | TO-263-5L — Package is a compatible variant of TO-263-5.; LM2576HVR-5.0: Package matches target.; LM2576S-5.0RG: Package matches target.; LM2575S-5.0: Package matches target. |
| Voltage | 7V to 40V | 4.5V to 40V | 8V min | 8V to 40V | 4.5V to 40V / 8V min / 8V to 40V / 5.0V — Wider input voltage range with a lower minimum.; LM2576HVR-5.0: Minimum input voltage is slightly higher.; LM2576S-5.0RG: Minimum input voltage is slightly higher.; LM2575S-5.0: Output voltage matches. |
| Current | 3.0A | 3.0A | 3.0A | 3.0A | 3.0A / 1.0A — Output current matches.; LM2576HVR-5.0: Output current matches.; LM2576S-5.0RG: Output current matches.; LM2575S-5.0: Significantly lower output current. The LM2575 series is rated for 1A. |
Application & sourcing insights
Questions & answers
The best alternatives for LM2576R-5.0 are other LM2576-5.0 series parts in the same TO-263-5 package, such as those from Texas Instruments (formerly National Semiconductor) or Diodes Inc. These are typically pin-compatible and share the same key electrical specifications.