# TPS3805H33QDCKRQ1

**Texas Instruments** · Supervisor And Reset ICs · SC-70-5

TPS3805H33QDCKRQ1 from Texas Instruments, in a SC-70-5. 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 | NC | unconnected | No internal connection. |
| 2 | GND | power_in | Ground reference; negative supply terminal. |
| 3 | RESET | output | Active-low push-pull reset output; asserted when VDD or SENSE drops below respective threshold. |
| 4 | VDD | power_in | Supply voltage input; monitored with 3.05 V threshold; recommended operating range 1.3 V to 6 V. |
| 5 | SENSE | input | Adjustable sense input; monitors external supply via resistor divider; 1.226 V threshold. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SC-70-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `TPS3805H33QDCKRQ1`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files: `tps3805h33qdckrq1-etched.step` / `tps3805h33qdckrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps3805h33qdckrq1.step` / `tps3805h33qdckrq1.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/tps3805h33-q1) (26 pp, sha256 `12b36cc77b8601fa`, retrieved 2026-10-06, 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/tps3805h33qdckrq1-datasheet.pdf)