LM2576S-5.0
National Semiconductor
Needs validationlow risk
A likely pin-compatible alternative from the same family with matching key electrical parameters and package.
Best Alternatives to XL2576S-5.0E1
XL2576S-5.0E1 is a popular 3A, 5V step-down (buck) switching regulator in a TO263-5L package. This page provides analysis of potential alternatives, including pin-compatible options and functional alternates requiring review.
AI replacement insight
Package risklow
Many alternatives use the same TO-263-5 footprint.
Electrical riskmedium
Some alternatives have different switching frequencies or input voltage ranges that must be checked.
Firmware risklow
These are analog regulators with no firmware.
Can it be replaced directly?
Direct replacement for XL2576S-5.0E1 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Start with Datasheet verified or Strong match candidates for XL2576S-5.0E1, then review parametric alternatives for package and electrical fit.
Main risk
The main risk is using an alternate with a different switching frequency (e.g., LM2596 series), which requires redesign of external components.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | XL2576S-5.0E1 | LM2576S-5.0 | LM2576HVS-5.0(UMW) | LM2596HVS-5.0(UMW) | Compatibility / risk |
|---|---|---|---|---|---|
| Output Voltage V | 5.0V | 5.0V | - | - | 5.0V — Exact match.; LM2596S-5.0: Exact match. |
| Output Current A | 3.0A | 3.0A | - | - | 3.0A / 3.5A — Exact match.; LM2596S-5.0: Higher output current provides more margin. |
| Switching Frequency | 52kHz | 52kHz | 52kHz | 150kHz | 52kHz / 150kHz — Exact match, simplifies migration.; LM2576HVS-5.0(UMW): Exact match.; LM2596HVS-5.0(UMW): Requires redesign of external inductor and capacitors.; LM2596S-5.0: Requires redesign of external inductor and capacitors. |
| Package | TO263-5L | TO-263-5 / TO-263-5L | TO-263 | TO-263 | TO-263-5 / TO-263-5L — Package is a strong match, but requires footprint verification.; LM2576HVS-5.0(UMW): Likely compatible footprint, but requires verification.; LM2596HVS-5.0(UMW): Likely compatible footprint, but requires verification.; LM2596S-5.0: Likely compatible footprint, but requires verification. |
| Input Voltage V | 4.5V - 40V | - | 8V - 60V | 4.75V - 60V | 8V - 60V / 4.75V - 60V — Min input is 8V (vs 4.5V), max is 60V (vs 40V).; LM2596HVS-5.0(UMW): Wider input voltage range. |
Application & sourcing insights
Questions & answers
Verified drop-in options for XL2576S-5.0E1 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.