# LP2985-33DBVRM3

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

LP2985-33DBVRM3 from Texas Instruments, 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 | Input supply pin accepting 2.5V to 16V (new chip) and requires a capacitor of 1µF or larger to ground. |
| 2 | GND | power_in | Ground reference pin. |
| 3 | ON/OFF | input | Enable pin for the LDO; drive high to enable or low to disable the device, or tie to VIN if unused; voltage range 0V to 16V (new chip). |
| 4 | BYPASS | output | Bypass pin connected to ground through an external capacitor to achieve low noise performance; voltage range -0.3V to 3V (new chip). |
| 5 | VOUT | output | Regulated output pin with fixed voltage range of 1.2V to 5.0V (new chip) and maximum output current of 150mA; requires a capacitor of 2.2µF or larger to ground. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LP2985-33DBVRM3`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `lp2985-33dbvrm3-etched.step` / `lp2985-33dbvrm3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp2985-33dbvrm3.step` / `lp2985-33dbvrm3.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/cn/lit/gpn/lp2985) (43 pp, sha256 `662ea8a50cc4c2be`, retrieved 2026-10-07, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/lp2985-33dbvrm3-datasheet.pdf)