MC78M05CDTRKG

@@ -0,0 +1,45 @@+# MC78M05CDTRKG++**onsemi** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DPAK-3++MC78M05CDTRKG from onsemi, in a DPAK-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 | Input | power_in | Unregulated positive input supply. Recommended operating range 7.0 V to 25 Vdc for the 5.0 V variant; absolute max 35 Vdc. A ~0.33 uF bypass capacitor is recommended close to the pin when the device is far from the main filter capacitor. |+| 2 | Ground | power_in | Common return / ground reference for both input and output. In the DPAK-3 package the heatsink tab (terminal 4 in the case outline) is internally connected to this pin. |+| 3 | Output | power_out | Regulated +5.0 V output, 500 mA maximum with adequate heatsinking (typical VO 5.0 V, tolerance +/-4% over line/load/temperature for the C grade). Dropout voltage typ 2.0 V. A ~0.1 uF output capacitor is recommended for transient response. |+| 4 | Ground (Tab) | power_in | Heatsink tab on the DPAK-3 package outline. Internally shorted to Pin 2 (Ground); commonly soldered to a copper pour to spread heat. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | DPAK-3 |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `MC78M05CDTRKGDTRKG`+- `MC78M05CDTRKGDTG`+- `MC78M05CDTRKGTG`++## CAD (KiCad official)++- Symbol: `MC78M05CDTRKG`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: DPAK-3 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/mc78m05cdtrk-d.pdf) (15 pp, sha256 `4ae6cd4978cb4cd9`, 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/mc78m05cdtrkg-datasheet.pdf)

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