Is there a pin-compatible replacement for ME6239A50PG?

Yes, several LDOs like SE8650K1-HF, GM7350TB, and ME6231A50PG use the same SOT89-3 package and pinout. However, their electrical parameters differ, so they are not direct drop-in replacements and require engineering review.

What risks should I check before replacing ME6239A50PG?

Key risks include: 1) Max Input Voltage: Ensure the replacement meets or exceeds the 30V rating. 2) Max Output Current: The replacement must supply at least 250mA. 3) Quiescent Current: A higher Iq may impact battery life. 4) Pinout: Verify the pin configuration is identical.

ME6239A50PG Alternatives, Datasheet & Cross Reference | MICRONE

ME6239A50PG is a 30V, 250mA LDO regulator in a SOT89-3 package, notable for its very low 1.5µA quiescent current. Finding a direct replacement requires careful review of voltage and current ratings.

AI replacement insight

Electrical riskhigh

Candidates have lower current or lower voltage ratings, posing a significant risk if not validated.

Package risklow

Several candidates share the SOT89-3 package and pinout, simplifying physical replacement.

Firmware risklow

As a simple LDO, there is no firmware interaction to consider.

Can it be replaced directly?

No direct, fully-equivalent replacement has been identified. All candidates involve a trade-off in key electrical parameters and require careful engineering validation.

Best replacement path

Review candidates based on whether higher input voltage tolerance or higher output current is more critical for your application.

Main risk

The primary risk is a mismatch in either maximum input voltage or maximum output current, which could lead to device failure or system malfunction.

Recommended alternatives

Pin-compatible alternative with higher input voltage (80V) but lower output current (200mA).

View details

Alternative comparison matrix

Feature / factor	ME6239A50PG	SE8650K1-HF	GM7350TB	Compatibility / risk
Package	SOT89-3	SOT89-3	SOT89-3(B)	SOT89-3 / SOT89-3(B) — Package and footprint appear identical.; GM7350TB: Package variant is mechanically compatible.
Pinout	GND, VIN, VOUT	GND, VIN, VOUT	GND, VIN, VOUT	GND, VIN, VOUT — Pinout matches based on datasheet review.; GM7350TB: Pinout matches based on datasheet review.
Voltage	30V	80V	40V	80V / 40V — Candidate has higher input voltage tolerance.; GM7350TB: Candidate has higher input voltage tolerance.
Current	250mA	200mA	200mA	200mA — Candidate has 20% lower output current capability.; GM7350TB: Candidate has 20% lower output current capability.
Quiescent Current	1.5µA	1.8µA	5µA	1.8µA / 5µA — Slightly higher quiescent current.; GM7350TB: Significantly higher quiescent current may affect battery life.

Application & sourcing insights

Questions & answers

There is no single best alternative. Candidates like SE8650K1-HF offer a higher input voltage but lower output current (200mA), while ME6231A50PG offers more current but has a much lower input voltage rating (18V). The best choice depends on your specific circuit requirements.