# LM22670QTJ-ADJ

**Texas Instruments** · DC-DC Converters · TO-263-7

LM22670QTJ-ADJ from Texas Instruments, in a TO-263-7. 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 | SW | output | Switching output of the regulator. |
| 2 | VIN | power_in | Supply input to the regulator. |
| 3 | BOOT | input | Bootstrap input that provides the gate voltage for the high-side NFET. |
| 4 | GND | power_in | Ground input to the regulator and the system ground pin. |
| 5 | RT/SYNC | input | Switching frequency adjustment and synchronization input, used to set the oscillator mode per the datasheet's oscillator mode control section. |
| 6 | FB | input | Feedback input to the regulator. |
| 7 | EN | input | Enable input used to control regulator start-up and shut-down, with precision enable and UVLO. |
| 8 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-263-7 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM22670QTJ-ADJ`
- Footprint: `Package_TO_SOT_SMD:TO-263-7_TabPin8`
- 3D model: TO-263-7 (KiCad packages3D, STEP)
- 3D model files: `lm22670qtj-adj-etched.step` / `lm22670qtj-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm22670qtj-adj.step` / `lm22670qtj-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/lm22670-q1) (38 pp, sha256 `5d2cd199b79fcc67`, 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/lm22670qtj-adj-datasheet.pdf)