# TMI3101C

**TMI** · DC-DC Converters · SOT-23-5

TMI3101C from TMI, in a SOT-23-5. 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 | EN | input | Chip Enable Pin; drive above 1.5V to enable or below 0.3V to disable the device; do not leave floating. |
| 2 | GND | power_in | Ground Pin. |
| 3 | LX | output | Power Switch Output connected to Inductor. |
| 4 | VIN | power_in | Power Supply Input; must be closely decoupled to GND with 4.7µF or greater ceramic capacitor. |
| 5 | FB | input | Output Voltage Feedback Pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TMI |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `TMI3101C`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tmi3101c-etched.step` / `tmi3101c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmi3101c.step` / `tmi3101c.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954669574475776) (12 pp, sha256 `5802516c7f0f7598`, retrieved 2026-09-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/tmi3101c-datasheet.pdf)