# CJ79L05-TA

**Changjing** · Linear Voltage Regulators (LDO) · TO-92-3

CJ79L05-TA from Changjing, in a TO-92-3. 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 pin of the negative regulator, connected to the common ground of input and output capacitors (Ci 0.33µF, Co 0.1µF). |
| 2 | IN | power_in | Negative input voltage pin, absolute maximum -30 V, with specified operation from -7 V to -20 V. |
| 3 | OUT | power_out | Regulated -5 V output pin (typ -5.0 V, -4.75 V to -5.25 V) supplying up to 0.1 A maximum output current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-92-3 |
| Category | Power Supply Chip |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `CJ79L05-TA`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files: `cj79l05-ta-etched.step` / `cj79l05-ta-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cj79l05-ta.step` / `cj79l05-ta.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](docs/cj79l05-ta-datasheet.pdf) (6 pp, sha256 `7c72bb20b5419f5e`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-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/cj79l05-ta-datasheet.pdf)