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BL1084-33-CY
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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# BL1084-33-CY++**BL Shanghai Belling** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)++BL1084-33-CY from BL Shanghai Belling, 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 | GND | power_in | Ground reference for the fixed-voltage regulator. Return path for all quiescent current (~5 mA typ). |+| 2 | Vout | power_out | Regulated 3.3V output (3.25 V to 3.35 V typical at 25 °C). Sourcing up to 5 A. Requires a 22 µF tantalum output capacitor for stability. |+| 3 | Vin | power_in | Unregulated input supply. Must be at least Vout + 1.4V (typ) at 5A. Absolute maximum 15V. Requires a 10 µF tantalum bypass capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BL Shanghai Belling |+| Package | TO-252-2(DPAK) |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `BL1084-33-CYY`+- `BL1084-33-CYS`+- `BL1084-33-CYS1`+- `BL1084-33-CYZ`++## CAD (KiCad official)++- Symbol: `BL1084-33-CY`+- 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:** [BL Shanghai Belling datasheet](docs/bl1084-33-cy-datasheet.pdf) (13 pp, sha256 `bb5efe271c8036b3`, 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/bl1084-33-cy-datasheet.pdf)
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