NCV1117ST50T3G
onsemi
Needs validationlow risk
Automotive-grade upgrade with higher current rating and identical package.
Best Alternatives to AMS1117-5.0RG
Find verified substitutes for the AMS1117-5.0RG, a 5V 800mA LDO in a SOT-223 package. Review pin-compatible upgrades and functional alternatives from leading manufacturers to improve performance and supply chain resilience.
AI replacement insight
Package risklow
The SOT-223 package and its pinout are highly standardized for the 1117 family.
Electrical riskmedium
Modern LDOs may have different stability requirements, especially regarding output capacitor ESR. Verify datasheet recommendations.
Sourcing risklow
The 1117-5.0 is a very common part, reducing overall sourcing risk by switching to a major manufacturer.
Can it be replaced directly?
Yes, the AMS1117-5.0 is a multi-source part number. Variants from manufacturers like onsemi, ST, and others are strong candidates, often with improved specifications.
Best replacement path
Upgrade to a 1A or 1.2A rated part from the 1117 family, such as the onsemi NCV1117ST50T3G or STMicroelectronics LDL1117S50R, for better performance and availability.
Main risk
The primary risk is ensuring pin-compatibility and checking for differences in dynamic performance, such as transient response or stability with existing output capacitors.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | AMS1117-5.0RG | NCV1117ST50T3G | LDL1117S50R | AMS1117-5.0 | Compatibility / risk |
|---|---|---|---|---|---|
| Current | 0.8 A | 1.0 A | 1.2 A | 1.0 A | 1.0 A / 1.2 A — Higher current capability is a safe upgrade.; LDL1117S50R: Higher current capability.; AMS1117-5.0: Higher current capability is a safe upgrade.; ME6118A50B3G: Higher current capability. |
| Temperature | -40°C to 125°C | -40°C to 125°C | -40°C to 125°C | Varies by MFR | -40°C to 125°C / Varies by MFR — Operating temperature range matches.; LDL1117S50R: Operating temperature range matches.; AMS1117-5.0: Check specific manufacturer datasheet for temp range.; ME6118A50B3G: Operating temperature range matches. |
| Package | SOT-223 | SOT-223 | SOT223 | SOT-223 | SOT-223 / SOT223 — Package matches, likely pin-compatible.; LDL1117S50R: Package matches, likely pin-compatible.; AMS1117-5.0: Package matches. This is the base part for the target's family.; ME6118A50B3G: Package matches, but pinout must be verified. |
| Application | Commercial | AEC-Q100 | - | - | AEC-Q100 — Automotive grade offers higher reliability. |
| Voltage | Not specified, assumed <20V | 20 V | 350 mV @ 1.2A | - | 20 V / 350 mV @ 1.2A — Higher maximum input voltage provides more margin.; LDL1117S50R: Significantly lower dropout voltage improves efficiency. |
| Psrr | Not specified | - | 87 dB @ 120Hz | - | 87 dB @ 120Hz — High PSRR is a significant performance upgrade. |
| Lifecycle | Single source | - | - | Multiple | Multiple — Multi-source part, good for supply chain resilience. |
| Tolerance | 1.5% | - | - | - | ±2% — Slightly lower output voltage accuracy. |
Application & sourcing insights
Questions & answers
Verified drop-in options for AMS1117-5.0RG 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.