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BL8072COTR33
Public Made by Adomby adom
BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+43@@ -0,0 +1,43 @@+# BL8072COTR33++**BL Shanghai Belling** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252++BL8072COTR33 from BL Shanghai Belling, in a TO-252. 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/ADJ | power_in | Ground / adjust pin. Tie to GND for the fixed-voltage version (BL8072COTR33 = fixed 3.3V). In adjustable configurations this pin is driven by an external R1/R2 divider from Vout; adjust-pin current IAdj is ~2µA. |+| 2 | VOUT | power_out | Regulated output. Fixed 3.3V ±2% for the BL8072COTR33 order code. Supplies up to 2A (Vin-Vout ≥ 1V for Vout ≥ 2.0V). Requires a 1µF ceramic output capacitor to GND for stability. |+| 3 | VDD | power_in | Input supply. Absolute max 20V, recommended operating max 18V. Requires a 1µF ceramic bypass capacitor to GND. For 3.3V output (COTR33) recommended Vin ≥ ~4.3V for full spec operation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BL Shanghai Belling |+| Package | TO-252 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `BL8072COTR33`+- `BL8072COTR33CLTR`++## CAD (KiCad official)++- Symbol: `BL8072COTR33`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [BL Shanghai Belling datasheet](docs/bl8072cotr33-datasheet.pdf) (7 pp, sha256 `a3ba73e83005f510`, 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/bl8072cotr33-datasheet.pdf)
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