# LM1117MPX-5.0

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4

LM1117MPX-5.0 from Texas Instruments, in a SOT-223-4. 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 | ADJ/GND | power_in | Ground pin for fixed 5V output version; adjustment reference pin for adjustable output versions. |
| 2 | VOUT | power_out | Regulated 5V output voltage pin; supports 0 to 800mA output current. |
| 3 | VIN | power_in | Input power supply pin; recommended 6.5V to 12V operating range, 20V absolute maximum. |
| 4 | VOUT | power_out | Regulated 5V output voltage pin; internally connected to pin 2. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-223-4 |
| Category | Power Management (PMIC) |
| Pins | 4 |

## CAD (KiCad official)

- Symbol: `LM1117MPX-5.0`
- Footprint: `Package_TO_SOT_SMD:SOT-223`
- 3D model: SOT-223-4 (KiCad packages3D, STEP)
- 3D model files: `lm1117mpx-5-0-etched.step` / `lm1117mpx-5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm1117mpx-5-0.step` / `lm1117mpx-5-0.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm1117) (46 pp, sha256 `31d9f40cc0e59cbe`, retrieved 2026-09-23, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/lm1117mpx-5-0-datasheet.pdf)