MC7805CDTRKG

@@ -0,0 +1,51 @@+# MC7805CDTRKG++**onsemi** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)++MC7805CDTRKG from onsemi, 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 | Vin | power_in | Unregulated positive input voltage. Recommended input range 7.0 V to 25 V (abs-max 35 V for MC7805C). A 0.33 uF ceramic input capacitor (Cin) is recommended when the regulator is located an appreciable distance from the power supply filter. |+| 2 | GND | power_in | Common ground reference shared between input and output. Also serves as the thermal path; the DPAK exposed tab (terminal 4 in the case outline drawing) is internally connected to Pin 2. |+| 3 | Vout | power_out | Regulated +5.0 V output (Vo min 4.8 V, typ 5.0 V, max 5.2 V for MC7805C at Tj = 25 C). Output can deliver in excess of 1.0 A with adequate heatsinking; short-circuit current typically 0.6 A at Vin = 35 V. Optional Co (>= 0.1 uF) improves transient response. |+| 4 | TAB | power_in | DPAK exposed heatsink tab. Internally connected to Pin 2 (Ground). Solder to a ground copper pour to spread heat; junction-to-case thermal resistance is 5.0 C/W. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | TO-252-2(DPAK) |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `MC7805CDTRKGDT`+- `MC7805CDTRKGDTRK`+- `MC7805CDTRKGDTRKG`+- `MC7805CDTRKGT`+- `MC7805CDTRKGTG`+- `MC7805CDTRKGD2T`+- `MC7805CDTRKGD2TG`+- `MC7805CDTRKGD2TR4`+- `MC7805CDTRKGD2TR4G`++## CAD (KiCad official)++- Symbol: `MC7805CDTRKG`+- 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:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/mc7805cdtrk-d.pdf) (31 pp, sha256 `ad3f70896343dcf0`, 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/mc7805cdtrkg-datasheet.pdf)

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