Is there a pin-compatible replacement for NCV4264-2ST50T3G?

Yes, both the TPS7B6950QDCYRQ1 and UA78M05CDCYR appear to be pin-compatible based on datasheet analysis. However, the UA78M05CDCYR has a much lower input voltage rating, making it a riskier choice.

What risks should I check before replacing NCV4264-2ST50T3G?

Before replacing, you must verify the maximum input voltage in your circuit. Some alternatives have lower ratings. Also check quiescent current, dropout voltage, and thermal performance to ensure reliability.

NCV4264-2ST50T3G Alternatives, Datasheet & Cross Reference | onsemi

NCV4264-2ST50T3G is a robust 5V, 100mA automotive LDO regulator now marked as 'Not For New Designs'. Finding a suitable replacement with a similar wide input voltage range and pinout is crucial for maintaining system integrity.

AI replacement insight

Electrical risklow

Key parameters are very close, but max input voltage and transient response should be verified.

Package risklow

Package is SOT-223, but footprint should be double-checked against the specific land pattern.

Sourcing risklow

The target is NRND; recommended alternatives are Active from major manufacturers.

Can it be replaced directly?

Yes, TPS7B6950QDCYRQ1 is a strong candidate for direct replacement, offering a similar package, pinout, and electrical characteristics.

Best replacement path

TPS7B6950QDCYRQ1 is the strongest candidate due to its matching pinout, automotive qualification, and very similar voltage/current ratings.

Main risk

The primary risk when substituting is ensuring the replacement's maximum input voltage and quiescent current meet the specific application's requirements.

Recommended alternatives

Strong automotive-grade alternative with matching pinout and very similar key parameters.

View details

Alternative comparison matrix

Feature / factor	NCV4264-2ST50T3G	TPS7B6950QDCYRQ1	UA78M05CDCYR	Compatibility / risk
Package	SOT-223	SOT-223	SOT-223	SOT-223 — Package matches target.; UA78M05CDCYR: Package matches target.
Pinout	IN,GND,OUT,GND(Tab)	IN,GND,OUT,GND(Tab)	IN,GND,OUT,GND(Tab)	IN,GND,OUT,GND(Tab) — Pinout appears identical based on datasheet review.; UA78M05CDCYR: Pinout appears identical based on datasheet review.
Voltage	45V	40V (45V transient)	25V	40V (45V transient) / 25V — Max input voltage is slightly lower but very close.; UA78M05CDCYR: Max input voltage is significantly lower.
Current	100mA	150mA	500mA	150mA / 500mA — Higher output current capability.; UA78M05CDCYR: Higher output current capability.

Application & sourcing insights

Questions & answers

The best alternative found is the Texas Instruments TPS7B6950QDCYRQ1. It is also automotive-grade, has a nearly identical input voltage range, and appears to be pin-compatible.