
Diodes Incorporated
AP63300WU-7 is a close TSOT26 buck candidate with 3A output.
AP63200WU-7 alternatives should be reviewed as buck regulator substitutions. No listed part has proven pin-to-pin evidence.
Mode, IQ, output type, or frequency may differ.
TSOT26 matches, but pin functions are missing.
No digital interface is listed.
Kept candidates are catalog matched.
No direct pin-compatible replacement is proven from the provided fields.
Review AP63300WU-7 first, then AP63201WU-7 if PWM-only operation is acceptable.
Pinout and regulator operating mode are not fully verified.

Diodes Incorporated
AP63300WU-7 is a close TSOT26 buck candidate with 3A output.
| Feature / factor | AP63200WU-7 | AP63300WU-7 | AP63201WU-7 | AP63203WU-7 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TSOT26 | TSOT26 | TSOT26 | TSOT26 | TSOT26 — same package name; AP63201WU-7: same package name; AP63203WU-7: same package name; AP63205WU-7: same package name |
| Pinout | 6 pins | 6 pins | 6 pins | 6 pins | 6 pins — pin functions missing; AP63201WU-7: pin functions missing; AP63203WU-7: pin functions missing; AP63205WU-7: pin functions missing |
| Voltage | 3.8-32V | 3.8-32V | 3.8-32V | 3.3V fixed | 3.8-32V / 3.3V fixed / 5.0V fixed — same Vin range; AP63201WU-7: same Vin range; AP63203WU-7: output scheme differs; AP63205WU-7: output scheme differs |
| Current | 2A | 3A | 2A | 2A | 3A / 2A — higher load rating; AP63201WU-7: same output current; AP63203WU-7: same current; AP63205WU-7: same current |
| Temperature | -40 to 85C | missing | - | - | missing — ES lacks temp |
| Application | PFM/PWM, 22uA | - | PWM only, 258uA | 1.1MHz buck | PWM only, 258uA / 1.1MHz buck — mode and IQ differ; AP63203WU-7: BOM may change; AP63205WU-7: BOM may change |
AP63300WU-7 is the closest kept candidate, but it still needs pinout and BOM review.