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BL8503-33PRM
Public Made by Adomby adom
BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+46@@ -0,0 +1,46 @@+# BL8503-33PRM++**BL Shanghai Belling** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L++BL8503-33PRM from BL Shanghai Belling, in a SOT-23-3L. 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 | Vss | power_in | Ground reference for the regulator. Connect to system ground; place the 1 µF output capacitor return here. |+| 2 | Vout | power_out | Regulated 3.3V output (3.234-3.366 V, ±2%). Supplies up to 250 mA. Requires a 1 µF (tantalum recommended) output capacitor to ground for stability. |+| 3 | Vin | power_in | Unregulated supply input. Operating range 1.5 V to 8 V (absolute max 10 V). Requires a 1 µF (tantalum recommended) input capacitor to ground. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BL Shanghai Belling |+| Package | SOT-23-3L |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `BL8503-33PRM`+- `BL8503-33PRMPSM`+- `BL8503-33PRMPSA`+- `BL8503-33PRMPSB`+- `BL8503-33PRMPT`++## CAD (KiCad official)++- Symbol: `BL8503-33PRM`+- Footprint: `Package_TO_SOT_SMD:SOT-23-3`+- 3D model: SOT-23-3L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [BL Shanghai Belling datasheet](docs/bl8503-33prm-datasheet.pdf) (13 pp, sha256 `8f6684221c2cf4c4`, retrieved 2026-08-17, tier: lcsc)+- **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/bl8503-33prm-datasheet.pdf)
page.jsonadded+34@@ -0,0 +1,34 @@+{+ "slug": "bl8503-33prm",+ "version": "0.1.0",+ "type": "component",+ "description": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "pmic",+ "bl8503-33prm"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bl8503-33prm.kicad_sym",+ "bl8503-33prm.kicad_mod",+ "bl8503-33prm.glb",+ "bl8503-33prm.step",+ "bl8503-33prm.lbr",+ "docs/hero.png",+ "docs/bl8503-33prm-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}