
ETA
ETA1038S2G may fit only low-current 5V boost designs.
MT3608L is a SOT23-6 boost converter. Listed alternatives need pinout and electrical review before use.
Output and current often lower.
SOT23-6 matches, pinout unknown.
No digital interface shown.
Lifecycle data is limited.
No verified pin-compatible replacement is supported by the provided data.
Use a boost candidate only after pinout, VIN, VOUT, switch limit, and thermal checks.
Most candidates are buck converters or lower-rated fixed-output boost parts.

ETA
ETA1038S2G may fit only low-current 5V boost designs.
| Feature / factor | MT3608L | ETA1038S2G | ETA1061V50S2G | ETA1061V33S2G | Compatibility / risk |
|---|---|---|---|---|---|
| Application | Boost | Boost | Boost fixed 5V | Boost fixed 3.3V | Boost / Boost fixed 5V / Boost fixed 3.3V — same topology; ETA1061V50S2G: fixed output; ETA1061V33S2G: fixed output |
| Package | SOT23-6 | SOT23-6 | SOT23-6 | SOT23-6 | SOT23-6 — same package; ETA1061V50S2G: same package; ETA1061V33S2G: same package |
| Current | 2.5A switch | 1.5A max | 1A switch | 1A switch | 1.5A max / 1A switch — load derating; ETA1061V50S2G: derating; ETA1061V33S2G: derating |
| Voltage | Up to 20V out | 5V max out | 5V fixed | 3.3V fixed | 5V max out / 5V fixed / 3.3V fixed — 5V only; ETA1061V50S2G: 5V only; ETA1061V33S2G: 3.3V only |
| Pinout | 6 pins | 6 pins | 6 pins | 6 pins | 6 pins — not proven; ETA1061V50S2G: not proven; ETA1061V33S2G: not proven |
From the provided data, ETA1038S2G is the closest boost candidate, but it is lower-rated and review required.