# TPS79933QDDCRQ1

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

TPS79933QDDCRQ1 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 | IN | power_in | Input supply pin; the recommended input voltage range is 2.7 V to 6.5 V, with an absolute maximum of 7 V. |
| 2 | GND | power_in | Ground reference pin for the regulator. |
| 3 | EN | input | Driving EN high turns on the regulator and driving it low puts the regulator into shutdown mode; EN can be connected to IN if not used. |
| 4 | NR | passive | Fixed-voltage versions only; connecting an external capacitor to this pin bypasses noise generated by the internal band gap and allows output noise to be reduced to very low levels. |
| 5 | OUT | power_out | Regulator output, which needs a small capacitor of at least 2 μF total typical ceramic capacitance from this pin to ground for stability. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPS79933QDDCRQ1`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tps79933qddcrq1-etched.step` / `tps79933qddcrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps79933qddcrq1.step` / `tps79933qddcrq1.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/tps799-q1) (30 pp, sha256 `62798e494817a662`, retrieved 2026-10-12, 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-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/tps79933qddcrq1-datasheet.pdf)