# GS2019-33TR5

**Gainsil** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

GS2019-33TR5 from Gainsil, in a SOT-23-5. 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 | VIN | power_in | Power supply input, operating from 1.8V to 7.0V with an absolute maximum supply voltage of 8.0V (-0.3V to 8.0V). |
| 2 | GND | power_in | Ground pin; the datasheet recommends separate ground planes for VIN and VOUT, each connected only at this GND pin. |
| 3 | EN | input | Chip enable input; the datasheet specifies a high threshold of at least 1.5V and a low threshold of at most 0.4V, with an absolute maximum of -0.3V to 8.0V. |
| 4 | NC | unconnected | Not connected. |
| 5 | VOUT | power_out | Regulated output, selectable from 1.2V to 5.0V (this part is the 3.3V variant); the datasheet gives a 500mA output current rating and absolute maximum of -0.3V to (VIN+0.3V). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `GS2019-33TR5`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `gs2019-33tr5-etched.step` / `gs2019-33tr5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gs2019-33tr5.step` / `gs2019-33tr5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Gainsil datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604430528628617216) (15 pp, sha256 `17b78d27a514c8b1`, retrieved 2026-10-09, 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/gs2019-33tr5-datasheet.pdf)