# LM317MDTR

**XBLW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2L

LM317MDTR from XBLW, in a TO-252-2L. 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 | input | Output voltage adjustment pin; connect to a resistor divider to set the output voltage Vo. |
| 2 | OUTPUT | power_out | Regulated voltage output pin, adjustable from 1.25V to 37V with current in excess of 1.5A. |
| 3 | INPUT | power_in | Supply input pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XBLW |
| Package | TO-252-2L |
| Category | Power Management (PMIC) |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `LM317MDTR`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252-2L (KiCad packages3D, STEP)
- 3D model files: `lm317mdtr-etched.step` / `lm317mdtr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm317mdtr.step` / `lm317mdtr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [XBLW datasheet](docs/lm317mdtr-datasheet.pdf) (13 pp, sha256 `934501fc1770b089`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/lm317mdtr-datasheet.pdf)