
Legend-Si
LGS63030B6 may fit LED boost use cases but needs full pinout and loop review.
MT3608 is a SOT23-6 boost regulator. Supplied candidates do not prove a direct pin-compatible replacement.
topology or regulation mode may differ
SOT23-6 alone is insufficient
no digital interface shown
candidate lifecycles vary
No confirmed pin-compatible MT3608 replacement is proven by the supplied data.
Use only reviewed boost-regulator candidates with verified pinout, current limit, and external network.
LED drivers and buck regulators are not direct substitutes for a voltage-output boost IC.

Legend-Si
LGS63030B6 may fit LED boost use cases but needs full pinout and loop review.
| Feature / factor | MT3608 | LGS63030B6 | DIO5661ST6 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT23-6 | SOT23-6 | SOT23-6 | SOT23-6 — same body; DIO5661ST6: same body | |
| Pinout | MT3608 pins | not provided | not provided | not provided — no pin map; DIO5661ST6: no pin map | |
| Voltage | 2-24V in, 28V out | 3-60V in | 2.7-5.5V in, 37V OVP | 3-60V in / 2.7-5.5V in, 37V OVP — min Vin worse; DIO5661ST6: Vin much narrower | |
| Current | 4A switch limit | not provided | 1.3A switch limit | not provided / 1.3A switch limit — cannot derate; DIO5661ST6: large derating | |
| Application | boost regulator | boost LED driver | LED driver | boost LED driver — CC LED role; DIO5661ST6: CC LED role |
No best direct alternative is confirmed here; review active boost regulators with matching pinout and ratings.