# LM2674MX-5.0-TP

**TECH PUBLIC** · DC-DC Converters · SOP-8

LM2674MX-5.0-TP from TECH PUBLIC, in a SOP-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 | NC | unconnected | Not connected. |
| 2 | NC | unconnected | Not connected. |
| 3 | NC | unconnected | Not connected. |
| 4 | FB | input | Feedback pin that senses the regulated output voltage to complete the feedback loop. |
| 5 | ON/OFF | input | Allows the switching regulator circuit to be shut down using logic level signals; input voltage range is -0.3 V to +VIN. |
| 6 | GND | power_in | Circuit ground. |
| 7 | VIN | power_in | Positive input supply for the IC switching regulator (absolute maximum 45 V); a suitable input bypass capacitor must be present at this pin to minimize voltage transients and supply the switching currents. |
| 8 | SW | output | Internal switch output whose voltage swings between +VIN minus VSAT and approximately -0.5 V; keep the PC board copper area on this pin to a minimum to limit coupling to sensitive circuitry. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM2674MX-5.0-TP`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `lm2674mx-5-0-tp-etched.step` / `lm2674mx-5-0-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2674mx-5-0-tp.step` / `lm2674mx-5-0-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/lm2674mx-5-0-tp-datasheet.pdf) (7 pp, sha256 `d382498d4be7d6c0`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/lm2674mx-5-0-tp-datasheet.pdf)