# NCP304LSQ37T1G

**onsemi** · Monitors & Reset Circuits · SC-82AB-4

NCP304LSQ37T1G from onsemi, in a SC-82AB-4. 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 | Reset Output | output | Complementary (CMOS) active-low reset output on the NCP304LSQ37T1G, with output voltage rated −0.3 V to Vin+0.3 V and output current up to 70 mA maximum. |
| 2 | Vin | power_in | Input power supply and detector sense input, with operating range 0.8 V to 10 V and an absolute maximum of 12 V. |
| 3 | N.C. | unconnected | No connection. |
| 4 | GND | power_in | Ground pin for the device. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SC-82AB-4 |
| Category | Power Supply Chip |
| Pins | 4 |

## 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 Power Supply Voltage | Vin |  |  | 12 | V | Pin 2 | 2 |
| Output Voltage, complementary NCP304 | VOUT | -0.3 |  |  | V | Pin 1, upper limit Vin+0.3 V | 2 |
| Output Current | IOUT |  |  | 70 | mA | Pin 1; maximum package power dissipation limit must not be exceeded | 2 |
| Maximum Junction Temperature | TJ |  |  | 125 | °C |  | 2 |
| Storage Temperature Range | Tstg | -55 |  | 150 | °C |  | 2 |
| Latchup Performance, Positive | ILATCHUP |  |  | 500 | mA | Per JEDEC standard JESD78 | 2 |
| Latchup Performance, Negative | ILATCHUP |  |  | 170 | mA | Per JEDEC standard JESD78 | 2 |
| Thermal Resistance, Junction-to-Air | RθJA |  | 285 |  | °C/W |  | 2 |
| Wide Operating Voltage Range | Vin | 0.8 |  | 10 | V | Features list | 1 |

## CAD (KiCad official)

- Symbol: `NCP304LSQ37T1G`
- Footprint: `Package_TO_SOT_SMD:SC-82AB_Handsoldering`
- 3D model: SC-82AB-4 (KiCad packages3D, STEP)
- 3D model files: `ncp304lsq37t1g-etched.step` / `ncp304lsq37t1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ncp304lsq37t1g.step` / `ncp304lsq37t1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/ncp304lsq37t1-d.pdf) (22 pp, sha256 `999f1c79203c7eef`, retrieved 2026-10-22, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/ncp304lsq37t1g-datasheet.pdf)