Is there a pin-compatible replacement for NCV4274ADT50RKG?

No direct pin-compatible replacement has been verified. While parts like NCP1117DT50RKG share the DPAK package, they have critical electrical differences, such as a much lower maximum input voltage (20V vs 40V).

What risks should I check before replacing NCV4274ADT50RKG?

The main risks are a lower maximum input voltage, which could damage the part, and a higher dropout voltage, which could cause the output to lose regulation. Always check these parameters against your circuit's requirements.

NCV4274ADT50RKG Alternatives, Datasheet & Cross Reference | onsemi

The onsemi NCV4274ADT50RKG is a 5V, 400mA automotive LDO in a DPAK package, now Not For New Designs. Finding a replacement requires careful review of its 40V input voltage and low dropout characteristics.

AI replacement insight

Electrical riskhigh

Most candidates have lower Vin(max) or higher Vdropout, which can cause malfunction or damage.

Package risklow

Several candidates use the same DPAK package, but pinout should always be verified.

Can it be replaced directly?

No direct, drop-in replacement has been identified. All candidates have significant parametric differences from NCV4274ADT50RKG that require engineering review.

Best replacement path

NCV7805BDTRKG is the most promising functional alternative as it is also automotive-grade, but its much higher dropout voltage (2.0V vs 0.5V) must be acceptable in the application.

Main risk

The primary risk is electrical incompatibility due to candidates having lower maximum input voltages or significantly higher dropout voltages than the original part.

Recommended alternatives

Automotive-grade alternative with higher current, but requires checking dropout and input voltage limits.

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Alternative comparison matrix

Feature / factor	NCV4274ADT50RKG	NCV7805BDTRKG	NCP1117DT50RKG	LR7805D	Compatibility / risk
Package	DPAK	DPAK-3	DPAK (TO-252)	DPAK (TO-252)	DPAK-3 / DPAK (TO-252) — Package is likely compatible but requires verification.; NCP1117DT50RKG: Package is form-factor compatible.; LR7805D: Package is form-factor compatible.
Voltage	0.5V	2.0V	1.2V @ 800mA	2.0V	2.0V / 1.2V @ 800mA — Dropout voltage is 4x higher.; NCP1117DT50RKG: Dropout voltage is significantly higher.; LR7805D: Dropout voltage is 4x higher.
Application	Automotive	Automotive	-	Commercial	Automotive / Commercial — Both parts are automotive grade.; LR7805D: Not automotive grade.
Current	400mA	-	1.0A	-	1.0A — Higher output current capability.

Application & sourcing insights

Questions & answers

NCV7805BDTRKG is a potential functional alternative from onsemi, but you must verify its higher dropout voltage (2.0V vs 0.5V) and slightly lower max input voltage (35V vs 40V) are acceptable for your design.