L7808 8 V Linear Regulator

@@ -0,0 +1,47 @@+# L7808++**STMicroelectronics** · Linear Regulator (LDO) · TO-220++The L7808 is a three-terminal fixed positive-voltage regulator from ST's L78xx (7800) series, delivering a stable 8 V output at up to 1.5 A with adequate heat sinking. It is the classic linear regulator for powering logic and analog rails from a higher unregulated supply, needing only input and output capacitors.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | INPUT | power_in | Unregulated DC input voltage. Absolute maximum V_I = 35 V for 5-18 V output variants. Bypass with a 0.33 µF ceramic to ground close to the pin to suppress oscillation and improve transient response. |+| 2 | GROUND | power_in | Common ground reference for input and output. Electrically connected to the metal tab of the TO-220 package; the tab must be considered live at GND potential when heatsinking. |+| 3 | OUTPUT | power_out | Regulated +8 V output (2% tolerance on A-version). Delivers up to 1.5 A output current with adequate heatsinking. Bypass with a 0.1 µF ceramic to ground for stability and load-transient response. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | Fixed positive linear regulator |+| Output voltage | 8 V |+| Output current | Up to 1.5 A (with heatsink) |+| Dropout voltage | 2 V typ |+| Package | TO-220 (3-lead) |+| Operating temperature | 0 C to 125 C (junction) |++## Ordering variants++- `L7808CV`+- `L7808CP`+- `L7808CDT-TR`+- `L7808CD2T-TR`++## CAD (KiCad official)++- Symbol: `l7808.kicad_sym`+- Footprint: `l7808.kicad_mod`+- 3D model: TO-220 body from KiCad `Package_TO_SOT_THT/TO-220-3_Vertical`.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/l78.pdf) (55 pp, sha256 `ccba643d1b7ced87`, 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/l7808-datasheet.pdf)

@@ -0,0 +1,37 @@+{+  "slug": "l7808",+  "version": "0.1.0",+  "type": "component",+  "description": "Fixed 8 V positive-voltage linear regulator, up to 1.5 A, in the L78xx (7800) series.",+  "tags": [+    "regulator",+    "linear",+    "fixed",+    "positive",+    "pmic",+    "st",+    "to-220"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "l7808.kicad_sym",+    "l7808.kicad_mod",+    "l7808.glb",+    "l7808.step",+    "docs/hero.png",+    "docs/l7808-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file