mc79l12abdr2g

@@ -0,0 +1,55 @@+# MC79L12ABDR2G++**onsemi** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8++MC79L12ABDR2G from onsemi, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | Vout | power_out | Regulated negative output, nominal -12 V (min -11.4 V, max -12.6 V) at up to 100 mA. A 0.1 uF output capacitor is recommended for stability and transient response. |+| 2 | Vin | power_in | Unregulated negative input supply. For -12 V output, Vin is typically -19 V; absolute max -35 Vdc. Tie together with pins 3, 6, and 7 (all Vin pins are internally common). |+| 3 | Vin | power_in | Unregulated negative input supply (common with pins 2, 6, 7). Tie all Vin pins together at the package for full current handling and thermal performance. |+| 4 | NC | unconnected | No internal connection. Leave floating or tie to ground per board layout preference. |+| 5 | GND | power_in | Common ground reference. A common ground is required between the input and output; regulator has no external sense lead. |+| 6 | Vin | power_in | Unregulated negative input supply (common with pins 2, 3, 7). Bypass with a 0.33 uF capacitor at the pin when the regulator is far from the supply filter. |+| 7 | Vin | power_in | Unregulated negative input supply (common with pins 2, 3, 6). Multiple Vin pins carry the input current and improve thermal dissipation. |+| 8 | NC | unconnected | No internal connection. Leave floating or tie to ground per board layout preference. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOIC-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `MC79L12ABDR2G`+- `MC79L12ABDR2GABDG`+- `MC79L12ABDR2GACDR2G`+- `MC79L12ABDR2GACDG`+- `MC79L12ABDR2GABPG`+- `MC79L12ABDR2GABPRAG`+- `MC79L12ABDR2GACPG`+- `MC79L12ABDR2GACPRAG`+- `MC79L12ABDR2GACPRPG`++## CAD (KiCad official)++- Symbol: `MC79L12ABDR2G`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/mc79l12ab-d.pdf) (None pp, sha256 `115a59773830cb30`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/mc79l12abdr2g-datasheet.pdf)

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