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L78M05CDT-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+47@@ -0,0 +1,47 @@+# L78M05CDT-TR++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)++L78M05CDT-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 positive DC input. Absolute maximum 35 V (for 5-18 V output versions). Bypass to GND with a 0.33 uF ceramic close to the pin for stability. |+| 2 | GROUND | power_in | Common ground reference. Internally connected to the exposed thermal tab of the DPAK package; both must be tied to the system ground plane for return current and heatsinking. |+| 3 | OUTPUT | power_out | Regulated +5 V output, 500 mA rated (higher with adequate heatsinking). Requires a 0.1 uF ceramic to GND close to the pin for transient response and stability. |+| TAB | GROUND | power_in | Exposed thermal pad on the back of the DPAK, electrically tied to the GROUND pin (pin 2). Must be soldered to a copper pour to remove heat (RthJC = 8 degC/W). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-252-2(DPAK) |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `L78M05CDT-TRCDT-TR`+- `L78M05CDT-TRCDT`+- `L78M05CDT-TRCV`+- `L78M05CDT-TRCP`+- `L78M05CDT-TRCH`++## CAD (KiCad official)++- Symbol: `L78M05CDT-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/l78m05cdt-tr.pdf) (45 pp, sha256 `aab13a77a9bc7601`, 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/l78m05cdt-tr-datasheet.pdf)
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