# TMI6240

**TMI** · Power Distribution Switches · SOT-23-5

TMI6240 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 | VIN | power_in | Power supply input pin. 2.7 V to 18 V operating range (20 V abs max). Bypass with a ≥1 µF X5R/X7R ceramic capacitor placed close to the pin. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | EN | input | Active-high enable input. Drive high (V_EN > 1.0 V typ. rising threshold) to turn the internal MOSFET on; drive low (< 0.9 V typ. falling threshold) to enter micro-power shutdown and trigger output auto-discharge (~30 mA). Do not float. Abs max 20 V. |
| 4 | SS | passive | Soft-start programming pin. Connect a capacitor (C_SS) from this pin to GND to set the output rising slew rate / soft-start time (e.g. 1.1 ms at C_SS=4.7 nF, V_IN=12 V). Floating gives the default minimum soft-start time (~0.15 ms). Abs max 6.0 V. |
| 5 | VOUT | power_out | Switch output pin. Drain of the internal N-channel MOSFET (R_DS(on) ≈ 50 mΩ at V_IN=12 V). Delivers up to 3.5 A to the load; auto-discharged to GND (~30 mA) when EN is low. Abs max 20 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TMI6240`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tmi6240-etched.step` / `tmi6240-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmi6240.step` / `tmi6240.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/8590200322187825152) (14 pp, sha256 `eae19045d6dd6fa7`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tmi6240-datasheet.pdf)