# LD1117S33CTR-HXY

**HXY MOSFET** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

LD1117S33CTR-HXY from HXY MOSFET, in a SOT-223. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND/ADJ | power_in | Ground reference pin of the fixed-output LD1117S33CTR (labelled Vss/ADJ, with the ADJ function used only on the adjustable version). |
| 2 | VOUT | power_out | Regulated 3.3V output (3.234V to 3.366V) with up to 800mA maximum output current. |
| 3 | VIN | power_in | Input supply pin with an absolute maximum of 18V and a recommended maximum operating input of 15V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOT-223 |
| Category | Power Management (PMIC) |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `LD1117S33CTR-HXY`
- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`
- 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files: `ld1117s33ctr-hxy-etched.step` / `ld1117s33ctr-hxy-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ld1117s33ctr-hxy.step` / `ld1117s33ctr-hxy.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [HXY MOSFET datasheet](docs/ld1117s33ctr-hxy-datasheet.pdf) (8 pp, sha256 `1d1b93d6cf6e0cbd`, retrieved 2026-10-28, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/ld1117s33ctr-hxy-datasheet.pdf)