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L7812CD2T-TR
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STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-2. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+50@@ -0,0 +1,50 @@+# L7812CD2T-TR++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-2++L7812CD2T-TR from STMicroelectronics, in a TO-263-2. 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 | INPUT | power_in | Unregulated DC input voltage (V_I). Must be at least ~2 V above V_O (typ. 14.5-35 V for the 12 V variant); absolute maximum 35 V. Bypass to GND with a 0.33 uF ceramic capacitor placed close to the pin. |+| 2 | GROUND | power_in | Common ground reference for the regulator. Electrically connected to the package tab on D2PAK; the tab must be soldered to a ground copper pour that also serves as the primary heat-sinking path. |+| 3 | OUTPUT | power_out | Regulated +12 V output (V_O), 2% tolerance for A-grade, 4% for standard C-grade. Deliverable current up to 1.5 A with adequate heat sinking. Bypass to GND with a 0.1 uF ceramic capacitor for stability and transient response. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-263-2 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `L7812CD2T-TRCD2T-TR`+- `L7812CD2T-TRCD2T`+- `L7812CD2T-TRACD2T-TR`+- `L7812CD2T-TRCV`+- `L7812CD2T-TRACV`+- `L7812CD2T-TRCP`+- `L7812CD2T-TRACP`+- `L7812CD2T-TRCDT-TR`+- `L7812CD2T-TRACDT-TR`++## CAD (KiCad official)++- Symbol: `L7812CD2T-TR`+- Footprint: `Package_TO_SOT_SMD:TO-263-2`+- 3D model: TO-263-2 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/l7812cd2t-tr.pdf) (58 pp, sha256 `32a4d2208c478c95`, 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/l7812cd2t-tr-datasheet.pdf)
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