# CJ9340T6

**Changjing** · DC-DC Converters · SOT-23-6L

CJ9340T6 from Changjing, in a SOT-23-6L. 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 | SW | output | Power switch output and drain of the internal MOSFET; connect the power inductor and output rectifier to SW, which can swing between GND and 28V. |
| 2 | GND | power_in | Ground pin for the device. |
| 3 | FB | input | Feedback input with a 0.6V feedback voltage; connect a resistor divider to FB to set the output voltage. |
| 4 | EN | input | Regulator on/off control input where a high input turns the converter on and a low input turns it off; connect to the input supply for automatic startup when not used. |
| 5 | IN | power_in | Input supply pin that must be locally bypassed. |
| 6 | NC | unconnected | Not connected. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23-6L |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `CJ9340T6`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `cj9340t6-etched.step` / `cj9340t6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cj9340t6.step` / `cj9340t6.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/8756497444207108096) (8 pp, sha256 `4a335a40d1de4c51`, 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/cj9340t6-datasheet.pdf)