MC79M05BDTRKG

@@ -0,0 +1,54 @@+# MC79M05BDTRKG++**onsemi** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DPAK-3++MC79M05BDTRKG 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. In the DPAK-3 package this pin is also electrically common with the tab (pin 4). |+| 2 | VI | power_in | Unregulated negative input supply. Absolute maximum input voltage is -35 Vdc. Must remain typically 1.1 V more negative than VO (dropout voltage) even during ripple peaks. A 0.33 uF input bypass capacitor (Cin) is recommended when the regulator is located an appreciable distance from the power supply filter. |+| 3 | VO | power_out | Regulated -5.0 V output (tolerance +/-4.0% for the B-grade, TJ = -40 to +125 C). Delivers up to 500 mA with proper heatsinking. A 1.0 uF output capacitor (CO) is recommended to improve stability and transient response. |+| 4 | TAB | power_in | Exposed thermal tab on the DPAK-3 package. Electrically connected to pin 1 (GND). Should be soldered to a copper pour for heat dissipation; copper area determines effective theta_JA (see Figure 1 on page 4). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | DPAK-3 |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `MC79M05BDTRKGBDT`+- `MC79M05BDTRKGBDTG`+- `MC79M05BDTRKGBDTRK`+- `MC79M05BDTRKGBDTRKG`+- `MC79M05BDTRKGCDT`+- `MC79M05BDTRKGCDTG`+- `MC79M05BDTRKGCDTRK`+- `MC79M05BDTRKGCDTRKG`+- `MC79M05BDTRKGBT`+- `MC79M05BDTRKGBTG`+- `MC79M05BDTRKGCT`+- `MC79M05BDTRKGCTG`++## CAD (KiCad official)++- Symbol: `MC79M05BDTRKG`+- 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/mc79m05bdtrk-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/mc79m05bdtrkg-datasheet.pdf)

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