# MC1403N

**HGSEMI** · Voltage Reference · DIP-8

MC1403N from HGSEMI, in a DIP-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 | Vin | power_in | Input supply voltage pin, operating range 4.5 V to 40 V (absolute maximum 40 V). |
| 2 | Vout | power_out | 2.5 V ±25 mV reference output, capable of up to 10 mA output current. |
| 3 | GND | power_in | Ground reference pin for the supply and output. |
| 4 | NC | unconnected | No connect pin, not internally used. |
| 5 | NC | unconnected | No connect pin, not internally used. |
| 6 | NC | unconnected | No connect pin, not internally used. |
| 7 | NC | unconnected | No connect pin, not internally used. |
| 8 | NC | unconnected | No connect pin, not internally used. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | DIP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage | Vout | 2.475 | 2.5 | 2.525 | V | IO = 0 mA | 4 |
| Temperature Coefficient of Output Voltage | ΔVO/ΔT |  | 10 | 40 | ppm/℃ |  | 4 |
| Output Voltage Change (over specified temperature range), MC1403 0 to +70℃ | ΔVO |  |  | 7 | mV | MC1403, 0 to +70℃ (over specified temperature range) | 4 |
| Line Regulation | Regline |  | 1.2 | 4.5 | mV | 15 V≤VI≤40 V, IO = 0 mA | 4 |
| Line Regulation | Regline |  | 0.6 | 3 | mV | 4.5 V≤VI≤15 V, IO = 0 mA | 4 |
| Load Regulation | Regload |  |  | 10 | mV | 0 mA < IO < 10 mA | 4 |
| Quiescent Current | IQ |  | 1.2 | 1.5 | mA | IO = 0 mA | 4 |
| Input Voltage | VI |  |  | 40 | V |  | 3 |
| Storage Temperature | Tstg | -65 |  | 150 | ℃ |  | 3 |
| Junction Temperature | TJ |  |  | 175 | ℃ |  | 3 |
| Lead Temperature (Soldering, 10 seconds) | TL |  |  | 260 | ℃ | Soldering, 10 seconds | 3 |
| Operating Ambient Temperature Range, MC1403 | TA | 0 |  | 70 | ℃ | MC1403 (commercial grade) | 3 |

## CAD (KiCad official)

- Symbol: `MC1403N`
- Footprint: `Package_DIP:DIP-8_W7.62mm`
- 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files: `mc1403n-etched.step` / `mc1403n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mc1403n.step` / `mc1403n.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HGSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757002830370881536) (10 pp, sha256 `c31f743d834a5361`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+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/mc1403n-datasheet.pdf)