AP7381-50SA-7
Public Unreviewedby Ray
Diodes Incorporated Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownAP7381-50SA-7
Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23
AP7381-50SA-7 from Diodes Incorporated, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | power_in | Unregulated supply input voltage. Recommended operating range 3.3V to 40V (absolute maximum -0.3V to 45V). A 1µF ceramic bypass capacitor to GND is recommended near the pin. |
| 2 | VOUT | power_out | Regulated 5.0V output (fixed, -50 variant). Delivers up to 150mA with typical dropout of 1000mV @ 100mA. Requires a 2.2µF low-ESR ceramic output capacitor to GND for stability. |
| 3 | GND | power_in | Device ground reference. Typical quiescent ground current is 2.5µA at no load and ~25µA at 100mA load. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
AP7381-50SA-7AP7381-50SA-728Y-13AP7381-50SA-733Y-13AP7381-50SA-750Y-13AP7381-50SA-770Y-13AP7381-50SA-733Y-TCAP7381-50SA-728V-AAP7381-50SA-733V-AAP7381-50SA-750V-AAP7381-50SA-770V-A
CAD (KiCad official)
- Symbol:
AP7381-50SA-7 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
ap7381-50sa-7.step |
59 KB | You want the bare part, or you mark your own boards. |
ap7381-50sa-7-etched.step |
2.1 MB | You want the part with AP7381-50SA-7 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 514 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (13 pp, sha256
657d25b1f48ab5dc, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).