# CJ6206A18N

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

CJ6206A18N from Changjing, in a SOT-23. 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; the datasheet lists it as Ground for the SOT-23 (N) package, with the absolute input voltage limit referenced to VSS (VSS-0.3 V to VSS+8 V). |
| 2 | VOUT | power_out | Regulated output pin, with output current up to 300 mA (600 mA absolute maximum rating) and VOUT limited to VSS-0.3 V to VIN+0.3 V. |
| 3 | VIN | power_in | Power input pin, with an operating input voltage of 2.0 V to 7.0 V (absolute maximum VSS-0.3 V to VSS+8 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23 |
| 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 (absolute maximum) | VIN |  |  | 8 | V | Printed as VSS -0.3~VSS+8 V; lower limit is VSS-0.3 (not numeric) | 3 |
| Output Current (absolute maximum) | IOUT |  |  | 600 | mA |  | 3 |
| Power Dissipation, SOT-23 package | Pd |  |  | 0.3 | W | SOT-23 (N package) row | 3 |
| Soldering Temperature | T solder |  |  | 260 | ℃ | 10s | 3 |
| Storage Temperature | Tstg | -40 |  | 125 | ℃ |  | 3 |
| Operating Ambient Temperature | TA | -40 |  | 85 | ℃ |  | 3 |
| Operating Junction Temperature | Tj | -40 |  | 125 | ℃ |  | 3 |
| Input Voltage | VIN | 2 |  | 7 | V |  | 3 |
| Output Voltage High Accuracy (tolerance) | VOUT(E) | -2 |  | 2 | % | Printed as ±2% (Typ.) in Features | 1 |
| Supply Current | ISS |  | 5 | 10 | μA | IOUT=0 | 3 |
| Standby Current | ISTBY |  |  | 0.1 | μA | CE = VSS | 3 |
| Output Current | IOUT | 300 |  |  | mA |  | 3 |
| Load Regulation | ∆VOUT |  |  | 10 | mV | VIN= VOUT +1V, 1mA≤IOUT≤100mA | 3 |
| Line Regulation | ∆VOUT/(VOUT×∆VIN) |  | 0.01 | 0.2 | %/V | IOUT =10mA, VOUT +1V≤VIN≤6V | 3 |
| Output Voltage Temperature Characteristics | ∆VOUT/(∆T×VOUT) |  |  | 100 | ppm | IOUT =10mA, -40≤T≤+85 | 3 |
| Short Current | IShort |  |  | 50 | mA | VOUT =VSS | 3 |
| Power Supply Rejection Rate at 1kHz | PSRR | 65 |  |  | dB | 1kHz, IOUT=50mA | 3 |
| Power Supply Rejection Rate at 10kHz | PSRR | 50 |  |  | dB | 10kHz, IOUT=50mA | 3 |
| CE High Voltage | VCE“H” | 1.5 |  |  | V | Maximum printed as VIN (not numeric) | 3 |
| CE Low Voltage | VCE“L” |  |  | 0.3 | V |  | 3 |

## CAD (KiCad official)

- Symbol: `CJ6206A18N`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `cj6206a18n-etched.step` / `cj6206a18n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cj6206a18n.step` / `cj6206a18n.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/8588945103881195520) (10 pp, sha256 `4c6793717112b941`, retrieved 2026-10-18, 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/cj6206a18n-datasheet.pdf)