# TPS1120DR

**Texas Instruments** · MOSFETs · SOIC-8

TPS1120DR from Texas Instruments, in a SOIC-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 | 1SOURCE | passive | Source terminal of MOSFET 1; the lead is internally tied to the MOSFET 1 source heat sink, and the datasheet gives no separate current limit for this pin. |
| 2 | 1GATE | input | Gate of MOSFET 1; TTL and CMOS compatible input with VGS(th) of -1.5 V maximum. |
| 3 | 2SOURCE | passive | Source terminal of MOSFET 2; the lead is internally tied to the MOSFET 2 source heat sink, and the datasheet gives no separate current limit for this pin. |
| 4 | 2GATE | input | Gate of MOSFET 2; TTL and CMOS compatible input with VGS(th) of -1.5 V maximum. |
| 5 | 2DRAIN | passive | Drain of MOSFET 2; for all applications both drain pins of each device should be connected together. |
| 6 | 2DRAIN | passive | Drain of MOSFET 2; for all applications both drain pins of each device should be connected together. |
| 7 | 1DRAIN | passive | Drain of MOSFET 1; for all applications both drain pins of each device should be connected together. |
| 8 | 1DRAIN | passive | Drain of MOSFET 1; for all applications both drain pins of each device should be connected together. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TPS1120DR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tps1120dr-etched.step` / `tps1120dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps1120dr.step` / `tps1120dr.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/lit/ds/symlink/tps1120.pdf) (17 pp, sha256 `12ce794c05f16c80`, retrieved 2026-10-08, tier: manufacturer)
- **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/tps1120dr-datasheet.pdf)