Is there a pin-compatible replacement for LM2575T-5.0?

The LM2576T-5.0 is a likely pin-compatible replacement. It shares the same package, pin count, and core function, with a higher output current capability.

What risks should I check before replacing LM2575T-5.0?

Check for package compatibility (through-hole vs. surface-mount), switching frequency differences which affect external components, and ensure output current/voltage meet your design needs.

LM2575T-5.0 Alternatives, Datasheet & Cross Reference | National Semiconductor

The LM2575T-5.0 is a popular 5V, 2A step-down voltage regulator in a TO-220 package. When seeking alternatives, key factors are package, pinout, and electrical ratings like current and switching frequency.

AI replacement insight

Package riskhigh

Many alternatives are surface-mount (TO-263) and not compatible with the through-hole TO-220.

Electrical riskmedium

Check for switching frequency changes (e.g., LM2596) which require redesign of magnetics.

Sourcing risklow

This is a very common regulator family with many manufacturers and clones available.

Can it be replaced directly?

The LM2576T-5.0 is a likely pin-for-pin upgrade, providing 3A vs the original 2A. Other parts require circuit or layout changes.

Best replacement path

Upgrade to the LM2576T-5.0 for higher current in the same package.

Main risk

The main risk is selecting a part with a different package (e.g., TO-263 vs TO-220) or a different switching frequency.

Recommended alternatives

A strong alternative with higher 3A output current in the same TO-220 package; likely pin-compatible.

View details

Alternative comparison matrix

Feature / factor	LM2575T-5.0	LM2576T-5.0	LM2596T-5.0	LM2576S-5.0	Compatibility / risk
Package	TO-220-5	TO-220-5	TO-220-5	TO-263-5L	TO-220-5 / TO-263-5L — Same package family, likely form-fit compatible.; LM2596T-5.0: Same package family.; LM2576S-5.0: Surface-mount package is not a direct replacement for through-hole.
Current	2.0A	3.0A	3.0A	3.0A+	3.0A / 3.0A+ — Higher output current provides more design margin.; LM2596T-5.0: Higher output current.; LM2576S-5.0: Higher output current.
Voltage	5.0V	5.0V	-	5.0V	5.0V — Fixed 5V output matches target.; LM2576S-5.0: Matches target output voltage.
Frequency	52kHz	52kHz	150kHz	-	52kHz / 150kHz — Same switching frequency allows reuse of external components.; LM2596T-5.0: Significantly different frequency requires redesign.

Application & sourcing insights

Questions & answers

The LM2576T-5.0 is often the best alternative, offering a higher 3A current in the same TO-220 package. It is likely pin-compatible, but verification is recommended.