# TPS3809K33MDBVREP

**Texas Instruments** · Supervisor And Reset ICs · SOT-23

TPS3809K33MDBVREP from Texas Instruments, in a SOT-23. 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 | GND | power_in | Ground reference and power return for the supervisory circuit. |
| 2 | RESET | output | Active-low reset output asserted (held low) when VDD falls below threshold voltage VIT; remains asserted for 200 ms delay timer after VDD exceeds VIT threshold during power-up. |
| 3 | VDD | power_in | Supply voltage input for supervisory circuit; recommended operating range 2 V to 6 V, absolute maximum rating 7 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `TPS3809K33MDBVREP`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `tps3809k33mdbvrep-etched.step` / `tps3809k33mdbvrep-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps3809k33mdbvrep.step` / `tps3809k33mdbvrep.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/tps3809-ep) (15 pp, sha256 `117a11446d3c8c6d`, retrieved 2026-10-05, tier: lcsc)
- **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/tps3809k33mdbvrep-datasheet.pdf)