
XLSEMI
Strong functional match with identical key electrical specs and package, but a narrower temperature range.
Find functional alternatives and potential pin-compatible replacements for the XL1509-5.0, a 5V, 2A buck converter in an SOIC-8 package. Review key parametric differences before selection.
Key electricals are matched by several candidates.
Pinout and package dimensions (SOIC vs SOP) must be verified.
Direct replacement for XL1509-5.0 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
XL1509-5.0E1 offers the most direct path but requires checking the reduced temperature range.
The main risks are pinout incompatibility and reduced operating temperature range with some alternatives.

XLSEMI
Strong functional match with identical key electrical specs and package, but a narrower temperature range.
| Feature / factor | XL1509-5.0 | XL1509-5.0E1 | TD1509P5 R | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | SOP8 | SOIC-8 / SOP8 — Package matches target.; TD1509P5 R: Package is SOP8, requires dimensional check against SOIC-8. | |
| Voltage | 5V | 5.0V | 3.6V to 45V | 5.0V / 3.6V to 45V — Output voltage matches.; TD1509P5 R: Candidate has a wider input voltage range. | |
| Current | 2.0A | 2.0A | 2.0A | 2.0A — Output current matches.; TD1509P5 R: Output current matches. | |
| Temperature | -40°C to 125°C | -40°C to 85°C | -40°C to 125°C | -40°C to 85°C / -40°C to 125°C — Candidate has a narrower operating temperature range.; TD1509P5 R: Operating temperature range matches. |
Verified drop-in options for XL1509-5.0 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.