# CJ6376A33M

**Changjing** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L

CJ6376A33M from Changjing, in a SOT-23-3L. 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 | VSS | power_in | Ground reference pin; all voltages are referenced to network ground, per the absolute maximum ratings note. |
| 2 | VOUT | power_out | Regulated output; absolute maximum output voltage is -0.3 to 13 V, and the output voltage range is 2.1 to 12 V. |
| 3 | VIN | power_in | Power input; recommended supply voltage is 2.5 to 36 V, with an absolute maximum input voltage of -0.3 to 40 V. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 2.5 |  | 36 | V |  | 4 |
| Output Voltage Range | VOUT | 2.1 |  | 12 | V |  | 4 |
| DC Output Accuracy |  | -2 |  | 2 | % | IOUT=10mA | 4 |
| DC Output Accuracy |  | -1 |  | 1 | % | IOUT=10mA | 4 |
| Supply Current | ISS |  | 2 | 5 | μA | IOUT=0A | 4 |
| Line Regulation | ΔVOUT/(VOUT×ΔVIN) |  | 0.01 | 0.3 | %/V | IOUT =10mA, VOUT +1V≤VIN≤36V | 4 |
| Input Voltage | VIN | -0.3 |  | 40 | V |  | 3 |
| Output Voltage | VOUT | -0.3 |  | 13 | V |  | 3 |
| Storage Temperature | Tstg | -65 |  | 150 | °C |  | 3 |
| Lead Temperature (Soldering, 10 sec) | Tsolder |  |  | 260 | °C | Soldering, 10 sec | 3 |
| Maximum Junction Temperature | TJ Max |  |  | 150 | °C | OTP Limited | 3 |
| Output Current | IOUT |  |  | 600 | mA |  | 3 |
| Supply voltage at VIN | VIN | 2.5 |  | 36 | V |  | 3 |
| Operating junction temperature range | TJ | -40 |  | 125 | °C |  | 3 |
| Operating free air temperature range | TA | -40 |  | 85 | °C |  | 3 |
| Junction-to-ambient thermal resistance | RΘJA |  | 250 |  | °C/W | SOT-23-3L column | 3 |
| Junction-to-case thermal resistance | RΘJC |  | 125 |  | °C/W | SOT-23-3L column | 3 |
| Maximum power dissipation for reference | PD Ref |  | 0.4 |  | W | SOT-23-3L column | 3 |

## CAD (KiCad official)

- Symbol: `CJ6376A33M`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `cj6376a33m-etched.step` / `cj6376a33m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cj6376a33m.step` / `cj6376a33m.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590229053983514624) (10 pp, sha256 `a46ab49833b08254`, retrieved 2026-10-09, tier: lcsc)
- **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/cj6376a33m-datasheet.pdf)