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BL1117C-12CX
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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# BL1117C-12CX++**BL Shanghai Belling** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223++BL1117C-12CX from BL Shanghai Belling, in a SOT-223. 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 | Ground reference. Connect to system ground. On SOT-223 the tab is typically tied to pin 2 (Vout); the discrete GND pin is pin 1 on the fixed-output variant. |+| 2 | Vout | power_out | Regulated 1.2V output (±2%, min 1.176V, max 1.224V) at up to 1A load current. Requires a 10uF tantalum bypass capacitor to ground for stability. |+| 3 | Vin | power_in | Unregulated input voltage supply. Recommended min 2.7V (for 1.2V output), max 12V. Dropout is 1.3V at 1A load. Requires a 10uF tantalum bypass capacitor to ground. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BL Shanghai Belling |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `BL1117C-12CX12CX`+- `BL1117C-12CX12CY`+- `BL1117C-12CX12CM`++## CAD (KiCad official)++- Symbol: `BL1117C-12CX`+- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`+- 3D model: SOT-223 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [BL Shanghai Belling datasheet](docs/bl1117c-12cx-datasheet.pdf) (9 pp, sha256 `d00b9330975215ce`, 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/bl1117c-12cx-datasheet.pdf)
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