78L05
GR
Needs validationlow risk
A cross-vendor alternative in the same package with identical key electrical ratings.
Best Alternatives to L78L05ABUTR
The L78L05ABUTR is a common 5V, 100mA linear regulator in a SOT-89 package. Alternatives exist from other manufacturers, but careful verification of pinout and electrical specifications is essential for a successful replacement.
AI replacement insight
Electrical risklow
For 78L05 family parts, electrical specs are very similar.
Package riskmedium
Pinout can vary between different regulator families in the same SOT-89 package.
Sourcing risklow
The 78L05 is a widely multi-sourced component.
Can it be replaced directly?
Direct replacement for L78L05ABUTR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
cross_vendor_family
Main risk
Pinout mismatch with functionally similar parts in the same package (e.g., AMS1117).
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | L78L05ABUTR | 78L05 | AMS1117-5.0S | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-89 | SOT-89 | - | SOT-89 — Package matches, but pinout does not. | |
| Voltage | 5.0V | 30V | - | 12V — Significantly lower max input voltage. | |
| Current | 0.1A | 0.1A | - | 1.0A — Higher current capability. | |
| Manufacturer | STMicroelectronics | GR / ALJ | - | GR / ALJ — Cross-vendor alternative. | |
| Pinout | Vout, GND, Vin (typical) | - | GND, Vout, Vin | GND, Vout, Vin — Pinout is different, requires PCB redesign. |
Application & sourcing insights
Questions & answers
Verified drop-in options for L78L05ABUTR 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.