L78L12ABUTR

@@ -0,0 +1,51 @@+# L78L12ABUTR++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3++L78L12ABUTR from STMicroelectronics, in a SOT-89-3. 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 +12 V output. Deliver up to 100 mA. Recommended output decoupling capacitor 0.1 µF to GND for stability and transient response. |+| 2 | GND | power_in | Common ground / reference return. On SOT-89 this is the large center pad, tied to the die attach flag for thermal dissipation, so bond to a copper pour for heat-sinking. |+| 3 | VIN | power_in | Unregulated DC input. Absolute maximum 35 V (for 12-15 V output variants). Recommended input decoupling capacitor 0.33 µF placed close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-89-3 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `L78L12ABUTR`+- `L78L12ABUTRL78L12ACUTR`+- `L78L12ABUTRL78L12ABZ`+- `L78L12ABUTRL78L12ACZ`+- `L78L12ABUTRL78L12ABZ-AP`+- `L78L12ABUTRL78L12ACZ-AP`+- `L78L12ABUTRL78L12ACZ-TR`+- `L78L12ABUTRL78L12ABD-TR`+- `L78L12ABUTRL78L12ACD13TR`+- `L78L12ABUTRL78L12CD13TR`++## CAD (KiCad official)++- Symbol: `L78L12ABUTR`+- Footprint: `Package_TO_SOT_SMD:SOT-89-3`+- 3D model: SOT-89-3 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/l78l12abutr.pdf) (45 pp, sha256 `43922ae159face7e`, 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/l78l12abutr-datasheet.pdf)

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