LM2576S-5.0
National Semiconductor
Needs validationlow risk
A cross-vendor alternative with matching key specs and package. Pinout verification is recommended.
Best Alternatives to LM2576S-5.0RG
The LM2576S-5.0RG is a widely-used 3A, 5V step-down switching regulator in a TO-263 package. Several cross-vendor alternatives exist, with some offering upgraded performance, but careful verification of pinout and switching frequency is essential for a successful substitution.
AI replacement insight
Electrical riskhigh
Candidates like LM2596 have a different switching frequency, requiring redesign of external components.
Package risklow
Most alternatives are in the correct TO-263 package, but pinout must always be verified.
Sourcing riskmedium
The LM2576 family is widely cloned; ensure sourcing from reputable distributors to avoid counterfeit or out-of-spec parts.
Can it be replaced directly?
Direct replacement for LM2576S-5.0RG should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The safest path is to use a cross-vendor LM2576S-5.0, verifying the pinout via datasheet. For enhanced performance, consider the LM2576HVR-5.0 for its wider input voltage range.
Main risk
The primary risk is selecting a part with a different switching frequency (e.g., the LM2596 series), which necessitates a circuit redesign.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | LM2576S-5.0RG | LM2576S-5.0 | LM2576HVR-5.0 | LM2596S-5.0 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TO-263-5 | TO-263-5L | TO-263-5 | TO-263-5 | TO-263-5L — Package is a match.; LM2576HVR-5.0: Package matches.; LM2596S-5.0: Package matches. |
| Output Current A | 3.0A | 3.0A | 3.0A | 3.5A | 3.0A / 3.5A — Output current matches.; LM2576HVR-5.0: Output current matches.; LM2596S-5.0: Higher output current capability. |
| Input Voltage V | 8V-40V | 4V-40V | max 60V | - | 4V-40V / max 60V — Candidate has a wider input voltage range.; LM2576HVR-5.0: Candidate offers higher input voltage tolerance. |
| Switching Frequency | 52kHz | 52kHz | 52kHz | 150kHz | 52kHz / 150kHz — Switching frequency matches, avoiding redesign of external components.; LM2576HVR-5.0: Switching frequency matches.; LM2596S-5.0: Frequency mismatch requires redesign of magnetics and capacitors. |
| Manufacturer | HANSCHIP | National Semi / Slkor | - | - | National Semi / Slkor — Cross-vendor alternative. |
Application & sourcing insights
Questions & answers
Verified drop-in options for LM2576S-5.0RG are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.