# LM22674MRE-5.0

**Texas Instruments** · DC-DC Converters · ESOP-8

LM22674MRE-5.0 from Texas Instruments, in a ESOP-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 | BOOT | input | Bootstrap input that provides the gate voltage for the high-side NFET. |
| 2 | NC | unconnected | Not electrically connected to the die; the pin functions only as a thermal conductor. |
| 3 | NC | unconnected | Not electrically connected to the die; the pin functions only as a thermal conductor. |
| 4 | FB | input | Feedback input to the regulator. |
| 5 | EN | input | Precision enable pin used to control regulator start-up and shutdown (see Precision Enable and UVLO section). |
| 6 | GND | power_in | System ground. |
| 7 | VIN | power_in | Input supply to the regulator; recommended VIN range is 4.5 V to 42 V, with an absolute maximum of 43 V to GND. |
| 8 | SW | output | Switching output of the regulator; DC SW-to-GND limit is -5 V to VIN, with -10 V allowed for pulses up to 50 ns. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `LM22674MRE-5.0`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`
- 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files: `lm22674mre-5-0-etched.step` / `lm22674mre-5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm22674mre-5-0.step` / `lm22674mre-5-0.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm22674) (30 pp, sha256 `6db2da4fc5041725`, retrieved 2026-10-08, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/lm22674mre-5-0-datasheet.pdf)