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Best Alternatives to ME6118A33B3G

Package: SOT-223MICRONEAmplifiersOutput Voltage: 3.3 VOutput Current: 1 AInput Voltage Range: 2.5 V to 18 VDropout Voltage: 1.3 V @ 1 AQuiescent Current: 52 µA

ME6118A33B3G is a 3.3V, 1A low-dropout regulator in a SOT-223 package, notable for its low 52µA quiescent current. While no direct drop-in is confirmed, several functional alternatives and potential upgrades are available for review.

AI replacement insight

Electrical riskhigh

Quiescent current and max input voltage can differ significantly between candidates.

Package risklow

All viable candidates use the same SOT-223 package, but pinout verification is still necessary.

Can it be replaced directly?

Direct replacement for ME6118A33B3G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

BL8072CLTR33 is a potential upgrade with better current and efficiency. For a common alternative, the AMS1117 or NCP1117 family is viable if higher quiescent current is acceptable.

Main risk

The primary risk when substituting ME6118A33B3G is mismatching the quiescent current. The target has a low Iq (52µA), while many common alternatives like the 1117 series have an Iq in the milliamp range, impacting battery life and power budgets.

Recommended alternatives

5
AMS1117-3.3 package
AMS1117-3.3

Kexin

Needs validationmedium risk

A functional alternative in the same package, but with significantly higher quiescent current.

View details

Alternative comparison matrix

Feature / factorME6118A33B3GAMS1117-3.3A1117-3.3BL8072CLTR33Compatibility / risk
PackageSOT-223SOT-223--SOT-223 — Package matches.
Voltage3.3V18V--3.3V — Output voltage matches.
Current1.0A1.0A--2.0A — Higher output current capability.
Quiescent Current52µAHigh (mA range)--3.0µA — Significantly lower quiescent current is a major improvement.
Dropout Voltage1.3V @ 1A--850mV @ 1.5A—

Application & sourcing insights

Questions & answers

Verified drop-in options for ME6118A33B3G 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.