MC79M12BDTRKG

@@ -0,0 +1,54 @@+# MC79M12BDTRKG++**onsemi** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DPAK-3++MC79M12BDTRKG 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 | GND | power_in | Common ground reference. Must be shared between the input and output voltages of the regulator. |+| 2 | VI | power_in | Negative input voltage. Must remain typically at least 1.1 V more negative than VO (dropout), even at the high point of input ripple. Absolute maximum input voltage is −35 Vdc. |+| 3 | VO | power_out | Regulated −12 V negative output (nominal −12 V, ±4% tolerance; −11.5 V to −12.5 V at TJ = 25°C). Delivers up to 500 mA with adequate heatsinking; a 1.0 µF output capacitor is recommended for stability and transient response. |+| 4 | TAB | power_in | DPAK metal tab; electrically connected to the input pin (pin 2, VI) on this negative regulator family. Provides the primary thermal path to the PCB copper and should be soldered to a heatsinking copper pad. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | DPAK-3 |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `MC79M12BDTRKGBDT`+- `MC79M12BDTRKGBDTG`+- `MC79M12BDTRKGBDTRK`+- `MC79M12BDTRKGBDTRKG`+- `MC79M12BDTRKGCDT`+- `MC79M12BDTRKGCDTG`+- `MC79M12BDTRKGCDTRK`+- `MC79M12BDTRKGCDTRKG`+- `MC79M12BDTRKGBT`+- `MC79M12BDTRKGBTG`+- `MC79M12BDTRKGCT`+- `MC79M12BDTRKGCTG`++## CAD (KiCad official)++- Symbol: `MC79M12BDTRKG`+- 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/mc79m12bdtrk-d.pdf) (9 pp, sha256 `cab487486a5292f6`, 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/mc79m12bdtrkg-datasheet.pdf)

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