# LMS8117ADTX-ADJ

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252

LMS8117ADTX-ADJ from Texas Instruments, in a TO-252. 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 | ADJUST or GND | passive | Adjust pin for the adjustable output version (LMS8117ADTX-ADJ); it is the ground pin on fixed-output versions. |
| 2 | OUTPUT | output | Output voltage (VO) pin for the regulator, and the TO-252 tab (Tab) is also tied to this output. |
| 3 | INPUT | input | Input voltage (VIN) pin for the regulator; absolute maximum input voltage is 20 V and recommended input voltage is 15 V maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-252 |
| Category | Power Management (PMIC) |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `LMS8117ADTX-ADJ`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `lms8117adtx-adj-etched.step` / `lms8117adtx-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lms8117adtx-adj.step` / `lms8117adtx-adj.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/lms8117a) (28 pp, sha256 `7cbdb3f64e47af0f`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/lms8117adtx-adj-datasheet.pdf)