ETA3448S2F
ETA
Needs validationmedium risk
ETA3448S2F is a close SOT23-5 buck candidate, not a verified drop-in.
Best Alternatives to BL8028CB5TR
BL8028CB5TR is a SOT23-5 1.5A synchronous buck regulator. Several ETA buck parts are candidates, but none are pin-verified.
AI replacement insight
Electrical riskmedium
frequency/control differ on most candidates
Package risklow
kept parts are SOT23-5
Firmware risklow
no firmware interface shown
Sourcing riskmedium
candidate lifecycle is '-'
Can it be replaced directly?
No pin-compatible replacement is confirmed from the provided data.
Best replacement path
Start with ETA3448S2F, then ETA3414S2F, with FAE pinout and loop review.
Main risk
Pinout and DC-DC compensation are not verified.
Recommended alternatives
6Alternative comparison matrix
| Feature / factor | BL8028CB5TR | ETA3448S2F | ETA3414S2F | ETA3413S2F | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT23-5 | SOT23-5 | SOT23-5 | SOT23-5 | SOT23-5 — same body; ETA3414S2F: same body; ETA3413S2F: same body; ETA3418S2F: same body |
| Pinout | 5 pins | 5 pins | 5 pins | 5 pins | 5 pins — no pin map; ETA3414S2F: no pin map; ETA3413S2F: no pin map; ETA3418S2F: no pin map |
| Voltage | 2.6-5.5V | 2.5-5.5V | 2.6-7V | 2.6-5.5V | 2.5-5.5V / 2.6-7V / 2.6-5.5V — Vin covers; ETA3414S2F: wider Vin; ETA3413S2F: same Vin; ETA3418S2F: wider Vin |
| Current | 1.5A | 3A | 1.5A | 2A | 3A / 1.5A / 2A / 2.5A — higher rating; ETA3414S2F: same rating; ETA3413S2F: higher rating; ETA3418S2F: higher rating |
| Application | 2MHz buck | 2MHz COT buck | 3MHz PWM buck | 3MHz PWM buck | 2MHz COT buck / 3MHz PWM buck — COT vs current-mode; ETA3414S2F: retune LC; ETA3413S2F: retune LC; ETA3418S2F: retune LC |
Application & sourcing insights
Questions & answers
ETA3448S2F is the closest shown candidate by current, Vin, package, and 2MHz frequency, but it still needs FAE review.