# LM386DTR

**XBLW** · Audio Amplifiers · SOP-8

LM386DTR from XBLW, in a SOP-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 | GAIN | passive | Gain setting pin; an external resistor and capacitor between pins 1 and 8 set the voltage gain from 20 up to 200. |
| 2 | -INPUT | input | Inverting input, ground-referenced. |
| 3 | +INPUT | input | Noninverting input, ground-referenced. |
| 4 | GND | power_in | Ground reference. |
| 5 | VOUT | output | Amplifier output, automatically offset to half the supply voltage. |
| 6 | VCC | power_in | Power supply voltage, 4 V to 12 V supply range. |
| 7 | BYPASS | passive | Bypass decoupling path. |
| 8 | GAIN | passive | Gain setting pin; an external resistor and capacitor between pins 1 and 8 set the voltage gain from 20 up to 200. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XBLW |
| Package | SOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM386DTR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `lm386dtr-etched.step` / `lm386dtr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm386dtr.step` / `lm386dtr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [XBLW datasheet](docs/lm386dtr-datasheet.pdf) (10 pp, sha256 `0c6b07984335503e`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/lm386dtr-datasheet.pdf)