ETA3414S2F
ETA
Needs validationmedium risk
Strong alternative from the same manufacturer with higher current, but a different switching frequency (3.0MHz).
Best Alternatives to ETA3496S2F
ETA3496S2F is a 1.2A, 1.2MHz synchronous buck converter in a SOT23-5 package. Key alternatives often involve different switching frequencies, requiring external component review.
AI replacement insight
Electrical riskmedium
All candidates have different switching frequencies, requiring redesign of external components.
Package risklow
All candidates share the same SOT23-5 package, but pinout must be verified.
Can it be replaced directly?
No direct drop-in replacement is identified. All candidates require engineering review, primarily due to different switching frequencies and, in some cases, narrower input voltage ranges.
Best replacement path
Use ETA3418S2F or ETA3414S2F for an upgrade in current, but be prepared to adjust external components for the higher 3MHz switching frequency.
Main risk
Switching frequency mismatch is the primary risk, requiring redesign of the output filter. Secondary risk is a narrower input voltage range on some alternatives.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | ETA3496S2F | ETA3414S2F | ETA3418S2F | FP6381AS5CTR | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT23-5 | SOT23-5 | SOT23-5 | SOT-23-5 | SOT23-5 / SOT-23-5 — Package matches.; ETA3418S2F: Package matches.; FP6381AS5CTR: Package matches.; STI3411A: Package matches. |
| Voltage | 2.2V to 7.2V | 2.6V to 7.0V | 2.6V to 7.0V | 2.5V to 6V | 2.6V to 7.0V / 2.5V to 6V / 2.5V to 6.0V — Very similar input voltage range.; ETA3418S2F: Very similar input voltage range.; FP6381AS5CTR: Narrower input voltage range.; STI3411A: Narrower input voltage range. |
| Current | 1.2A | 1.5A | 2.5A | 1.2A | 1.5A / 2.5A / 1.2A / 2.0A — Higher output current.; ETA3418S2F: Significantly higher output current.; FP6381AS5CTR: Output current matches.; STI3411A: Higher output current capability. |
| Switching Frequency | 1.2MHz | 3.0MHz | 3.0MHz | 1.5MHz | 3.0MHz / 1.5MHz / 1.0MHz — Much higher frequency requires smaller external components.; ETA3418S2F: Much higher frequency requires smaller external components.; FP6381AS5CTR: Different frequency requires external component changes.; STI3411A: Different frequency requires external component changes. |
| Pinout | 5 | 5 | 5 | 5 | 5 — Pinout must be verified against datasheet.; ETA3418S2F: Pinout must be verified against datasheet.; FP6381AS5CTR: Pinout must be verified against datasheet.; STI3411A: Pinout must be verified against datasheet. |
Application & sourcing insights
Questions & answers
The ETA3418S2F and ETA3414S2F are strong functional alternatives from the same manufacturer, offering higher output current and a similar input voltage range. However, their 3MHz switching frequency requires recalculating the inductor and capacitors.