# AP7361C-33E-13

**Diodes Incorporated** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

AP7361C-33E-13 from Diodes Incorporated, in a SOT-223. 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 | IN | power_in | Regulator input supply, 2.2V to 6.0V. Bypass to ground with at least a 1µF (typ. 4.7µF) ceramic capacitor placed close to the pin. Absolute maximum 6.5V. |
| 2 | GND | power_in | Device ground reference. The SOT-223 tab (pin 2) also serves as the primary thermal path; connect to a copper plane sized to meet the ~1100mW package dissipation budget. |
| 3 | OUT | power_out | Regulated 3.3V output, up to 1A. Bypass to ground with at least a 2.2µF (typ. 4.7µF) ceramic capacitor; a larger cap improves ac load response. Internal 100Ω discharge resistor pulls OUT down when disabled/unpowered. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-223 |
| Category | PMIC |
| Pins | 3 |

## Ordering variants

- `AP7361C-33E-13E`
- `AP7361C-33E-13ER`
- `AP7361C-33E-13FGE`
- `AP7361C-33E-13Y5`
- `AP7361C-33E-13D`
- `AP7361C-33E-13DR`
- `AP7361C-33E-13SP`
- `AP7361C-33E-13SPR`

## CAD (KiCad official)

- Symbol: `AP7361C-33E-13`
- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`
- 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files: `ap7361c-33e-13-etched.step` / `ap7361c-33e-13-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap7361c-33e-13.step` / `ap7361c-33e-13.glb` are the bare package body.

## 3D model downloads

Two STEP files. Same geometry, different body top:

| File | Size | Use it when |
|---|---|---|
| [`ap7361c-33e-13.step`](ap7361c-33e-13.step) | 64 KB | You want the bare part, or you mark your own boards. |
| [`ap7361c-33e-13-etched.step`](ap7361c-33e-13-etched.step) | 2.4 MB | You want the part with `AP7361C-33E-13` already on it. |

The marking in the etched file is real recessed geometry cut into the solid, not a
texture or a decal: 582 faces against 75 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](https://www.diodes.com/assets/Datasheets/AP7361C-33E-13.pdf) (22 pp, sha256 `9b64f49c5975b2ba`, retrieved 2026-08-17, tier: manufacturer)
- **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).

[Datasheet PDF](docs/ap7361c-33e-13-datasheet.pdf)