# LM22676QTJE-ADJ

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

LM22676QTJE-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, swinging from about zero volts to VIN, with the 10 nF bootstrap capacitor connected between SW and BOOT; absolute maximum -5 V to VIN (DC). |
| 2 | VIN | power_in | Input supply to the regulator, operating range 4.5 V to 42 V (absolute maximum 43 V). |
| 3 | BOOT | input | Bootstrap input providing the gate voltage for the high-side N-FET via a 10 nF capacitor to SW; absolute maximum VSW + 7 V. |
| 4 | GND | power_in | System ground pin and ground input to the regulator. |
| 5 | NC | unconnected | Not electrically connected inside the chip, but the pin functions as a thermal conductor. |
| 6 | FB | input | Feedback input to the regulator, regulated to 1.285 V (typ) on the ADJ version via an external divider; absolute maximum -0.5 V to 7 V. |
| 7 | EN | input | Precision enable input controlling start-up and shutdown, with a 1.6 V (typ) falling threshold, 0.6 V hysteresis and about 6 uA internal pullup; must not exceed 6 V. |
| 8 | EP | power_in | Exposed pad, connect to ground to provide the thermal connection to the PCB. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LM22676QTJE-ADJ`
- Footprint: `Package_TO_SOT_SMD:TO-263-7_TabPin8`
- 3D model: TO-263-7 (KiCad packages3D, STEP)
- 3D model files: `lm22676qtje-adj-etched.step` / `lm22676qtje-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm22676qtje-adj.step` / `lm22676qtje-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/lm22676) (35 pp, sha256 `ba59cb724c5d419d`, retrieved 2026-10-11, 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-sonnet-5-5` (text+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/lm22676qtje-adj-datasheet.pdf)