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L78M12ACDT-TR
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STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# L78M12ACDT-TR++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)++L78M12ACDT-TR from STMicroelectronics, in a TO-252-2(DPAK). 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 supply. Absolute maximum V_I = 35 V (for V_O up to 18 V). Requires a 0.33 µF input bypass capacitor if the regulator is located far from the power-supply filter. |+| 2 | GND | power_in | Common ground reference for input and output. Electrically connected to the exposed DPAK tab (thermal pad) which serves as the primary heatsink connection. |+| 3 | OUTPUT | power_out | Regulated +12 V output, 500 mA capable. V_O typ = 12 V (11.75 to 12.25 V at T_J = 25 °C). A 0.1 µF output capacitor improves transient response. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-252-2(DPAK) |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `L78M12ACDT-TRDT-TR`+- `L78M12ACDT-TRDT`+- `L78M12ACDT-TR`++## CAD (KiCad official)++- Symbol: `L78M12ACDT-TR`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/l78m12acdt-tr.pdf) (29 pp, sha256 `06d79d9f1c19140c`, 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/l78m12acdt-tr-datasheet.pdf)
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