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BL8072CLTR50
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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# BL8072CLTR50++**BL Shanghai Belling** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4++BL8072CLTR50 from BL Shanghai Belling, in a SOT-223-4. 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 (5.0V) configuration. In the adjustable configuration this pin is the feedback/ADJ node; Vout = Vref x (1 + R2/R1) + I_ADJ x R2, with I_ADJ ~2 uA. Recommended R1 = 1k-10k, and a 0.1 uF ceramic C_ADJ to ground improves ripple rejection. |+| 2 | Vout | power_out | Regulated output. For BL8072CLTR50 this is 5.0V, +/-2% (Vout x0.98 to Vout x1.02). Supplies up to 2A (Iout(Max)=2A when Vin-Vout >= 1V for Vout >= 2.0V). A 1 uF ceramic output capacitor to GND is required for stability. |+| 3 | Vdd | power_in | Regulator input (Vin). Recommended operating range up to 18V, absolute maximum 20V. Requires a 1 uF ceramic bypass capacitor to GND. Typical dropout is 850 mV at Iout=1.5A for Vout>=2.0V (Vout=3.3V spec). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BL Shanghai Belling |+| Package | SOT-223-4 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++Same part, different packaging or reel option.++- `BL8072CLTR50`+- `BL8072CLTR50COTR50`++## CAD (KiCad official)++- Symbol: `BL8072CLTR50`+- Footprint: `Package_TO_SOT_SMD:SOT-223`+- 3D model: SOT-223-4 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [BL Shanghai Belling datasheet](docs/bl8072cltr50-datasheet.pdf) (7 pp, sha256 `48a7d46f1c8be9ee`, 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/bl8072cltr50-datasheet.pdf)
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