# TMI2286D

**TMI** · DC-DC Converters · SOP-8

TMI2286D from TMI, in a SOP-8. 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 | FB | input | Feedback pin; connects to the output divider (RFB1/RFB2, 1.22V reference) and sets line drop compensation via RFB1. |
| 2 | EN | input | Enable pin with internal pull up; do not pull EN to VIN directly, connect it through a series resistance of 10kΩ to 500kΩ to use the enable function. |
| 3 | PD | output | External P-MOSFET driver pin for an optional PMOSFET paralleled between VIN and SW (absolute maximum -0.3 to 33V). |
| 4 | IN | power_in | Power input pin with operating range 4.5V to 30V (absolute maximum -0.3 to 33V). |
| 5 | SW | passive | Switch pin connected to the external inductor (absolute maximum -0.3 to 33V). |
| 6 | SW | passive | Switch pin connected to the external inductor (absolute maximum -0.3 to 33V). |
| 7 | GND | power_in | Ground. |
| 8 | GND | power_in | Ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TMI |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage Range | VIN | 4.5 |  | 30 | V |  | 4 |
| Feedback Voltage Accuracy | VFB | 1.19 | 1.22 | 1.25 | V | PWM Operation | 4 |
| IN Voltage Range | VIN | 4.5 |  | 30 | V |  | 3 |
| Operating Junction Temperature Range | TJ | -40 | 125 |  | °C |  | 3 |
| Input Supply Voltage IN, PD, SW |  | -0.3 |  | 33 | V |  | 2 |
| All Other Pins EN, FB Voltage Range |  | -0.3 |  | 6 | V |  | 2 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 2 |
| Junction Temperature Range |  | -40 |  | 150 | °C |  | 2 |
| Power Dissipation |  |  |  | 2 | W |  | 2 |
| Lead Temperature (Soldering, 10s) |  |  |  | 260 | °C | Soldering, 10s | 2 |
| ESD Human Body Model for all pins | VESD | -2000 |  | 2000 | V | JEDEC specification JS-001 | 3 |
| Junction-to-ambient Thermal Resistance |  |  | 60 |  | °C/W |  | 2 |
| Junction-to-case Thermal Resistance |  |  | 46 |  | °C/W |  | 2 |

## CAD (KiCad official)

- Symbol: `TMI2286D`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `tmi2286d-etched.step` / `tmi2286d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmi2286d.step` / `tmi2286d.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/8590455055997972480) (9 pp, sha256 `41fe603b6b4503c6`, retrieved 2026-10-17, 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/tmi2286d-datasheet.pdf)