# LM4667MM

**Texas Instruments** · Audio Amplifiers · VSSOP-10-0.5mm

LM4667MM from Texas Instruments, in a VSSOP-10-0.5mm. 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 | SHUTDOWN | input | Shutdown control input; drive to GND (≤0.4 V) to disable or to VDD (≥1.4 V) to enable normal operation. |
| 2 | IN- | input | Negative input of differential audio signal pair; AC couple with 0.1 µF capacitor recommended. |
| 3 | NC | unconnected | No connection; leave unconnected or float. |
| 4 | IN+ | input | Positive input of differential audio signal pair; AC couple with 0.1 µF capacitor recommended. |
| 5 | GAIN SELECT | input | Gain selection logic input; drive to GND for 12 dB gain or to VDD for 6 dB gain. |
| 6 | V01 | output | High-side switching audio output; positive terminal of bridge-tied load (BTL) configuration. |
| 7 | GND | power_in | Ground return; power supply negative reference point. |
| 8 | GND | power_in | Ground return; power supply negative reference point. |
| 9 | VDD | power_in | Positive power supply input; operating range 2.7 V to 5.5 V. |
| 10 | V02 | output | Low-side switching audio output; negative terminal of bridge-tied load (BTL) configuration. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-10-0.5mm |
| Category | Amplifiers/Comparators |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `LM4667MM`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
- 3D model files: `lm4667mm-etched.step` / `lm4667mm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4667mm.step` / `lm4667mm.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/lm4667) (26 pp, sha256 `6c363d22d3e30130`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/lm4667mm-datasheet.pdf)