
UMW
LD1117-2.5 is a close 2.5V LDO candidate, pending pinout and package verification.
AMS1117-2.5V alternatives should match the fixed 2.5V output, 1A rating, package, and pinout. No drop-in replacement is verified here.
fixed voltage and current must match
multi-package listings need orderable check
linear regulator has no firmware
lifecycle fields are weak
Direct replacement for AMS1117-2.5V should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Review LD1117-2.5 first, then verify pinout and exact package.
Unverified pinout and exact package variant.

UMW
LD1117-2.5 is a close 2.5V LDO candidate, pending pinout and package verification.
| Feature / factor | AMS1117-2.5V | LD1117-2.5 | AMS1117-2.5 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-223, TO-252, SOT-89 | SOT-223, TO-252, SOT-89 | - | SOT-223, TO-252, SO-8 — SOT-89 not listed | |
| Pinout | 3 pins; pinout not shown | 3 pins; pinout not shown | - | 3 pins listed — pin functions absent | |
| Voltage | 2.5V out, 18V in max | 2.5V out, 18V in max | - | 2.5V out, 15V in max — lower input rating | |
| Current | 1A | 1A | - | 1A — same rating | |
| Temperature | -40 to 85C | -40 to 125C | - | not provided — needs check |
Verified drop-in options for AMS1117-2.5V 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.