# NCP3063BDR2G

**onsemi** · DC-DC Converters · SOIC-8

NCP3063BDR2G from onsemi, in a SOIC-8. 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 | Switch Collector | output | Internal Darlington switch collector, rated 0 to +40 V (measured vs. pin 4) with switch current up to 1.5 A. |
| 2 | Switch Emitter | output | Internal Darlington switch emitter, rated −0.6 V to +VCC with the transistor off, and the feedback point for the driver circuit in external-transistor designs. |
| 3 | Timing Capacitor | passive | Timing capacitor (oscillator) pin that generates the sawtooth ramp, rated −0.2 V to +1.4 V. |
| 4 | GND | power_in | Ground pin for all internal circuits; all maximum ratings are measured versus this pin. |
| 5 | Comparator Inverting Input | input | Inverting input of the internal feedback comparator, rated −0.2 V to +VCC. |
| 6 | VCC | power_in | Voltage supply pin, rated 0 to +40 V. |
| 7 | Ipk Sense | input | Peak current sense input that monitors the voltage across an external resistor to limit peak switch current; rated −0.2 V to VCC + 0.2 V, with a 200 mV typical current-limit sense voltage. |
| 8 | N.C. | unconnected | Not connected. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `NCP3063BDR2G`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ncp3063bdr2g-etched.step` / `ncp3063bdr2g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ncp3063bdr2g.step` / `ncp3063bdr2g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586176028952051712) (19 pp, sha256 `706fe13c74fc8342`, 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/ncp3063bdr2g-datasheet.pdf)