MC78M05ABDTRKG

@@ -0,0 +1,45 @@+# MC78M05ABDTRKG++**onsemi** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DPAK-3++MC78M05ABDTRKG 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. For the 5.0 V variant, operate with V_I from 7.0 V to 25 V (absolute maximum 35 V). Bypass with a suitable input capacitor when the regulator is located far from the filter capacitor. |+| 2 | Ground | power_in | Common ground reference for both input and output. Also connected internally to the exposed heatsink tab (terminal 4) of the DPAK-3 package, which serves as the primary thermal path to the PCB copper. |+| 3 | Output | power_out | Regulated +5.0 V output (4.9 V to 5.1 V typical for the AB high-accuracy grade at Tj = 25°C). Delivers up to 500 mA with adequate heatsinking; short-circuit current limit is typically 350 mA and peak output current is 700 mA. Dropout voltage is typically 2.0 V. |+| 4 | Tab/Ground | power_in | Exposed heatsink tab on the underside of the DPAK-3 package. Electrically tied internally to pin 2 (Ground). Solder to a copper pour to sink heat; θJC = 5.0 °C/W, θJA = 92 °C/W in the DT suffix package. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | DPAK-3 |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `MC78M05ABDTRKGDTRKG`+- `MC78M05ABDTRKGDTG`+- `MC78M05ABDTRKGTG`++## CAD (KiCad official)++- Symbol: `MC78M05ABDTRKG`+- 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/mc78m05abdtrk-d.pdf) (15 pp, sha256 `2339bbc0a38dcd3b`, 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/mc78m05abdtrkg-datasheet.pdf)

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