# LM2675M-ADJ

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

LM2675M-ADJ from Texas Instruments, 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 | CB | input | Bootstrap capacitor connection node; connect 470nF capacitor between CB and VSW pins for high-side gate drive. |
| 2 | NC | unconnected | No connection pin. |
| 3 | NC | unconnected | No connection pin. |
| 4 | FB | input | Feedback sense input pin; connect to resistive divider midpoint for adjustable output setting or directly to output capacitor for fixed output. |
| 5 | ON/OFF | input | Enable input with 1.4V threshold at 25°C (0.8V to 2V over -40°C to 125°C range); high enables switching and low disables regulator with 50-100μA standby current. |
| 6 | GND | power_in | Ground connection to system ground and bypass capacitor grounds (CIN, COUT) with minimum trace length to CIN input. |
| 7 | VIN | power_in | Supply input accepting 6.5V to 40V connected to high-side FET collector with direct path to power source and short bypass to ground. |
| 8 | VSW | output | Internal high-side FET source pin (switch node) connected to inductor and external diode cathode. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LM2675M-ADJ`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `lm2675m-adj-etched.step` / `lm2675m-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2675m-adj.step` / `lm2675m-adj.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/lm2675) (42 pp, sha256 `8986b0b605946f45`, retrieved 2026-09-26, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/lm2675m-adj-datasheet.pdf)