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BL1118CS8TR1833
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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+48@@ -0,0 +1,48 @@+# BL1118CS8TR1833++**BL Shanghai Belling** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · ESOP-8++BL1118CS8TR1833 from BL Shanghai Belling, in a ESOP-8. 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 | Channel 1 ground return. On adjustable versions this pin becomes the ADJ (feedback) pin, but on the BL1118CS8TR1833 (fixed 1.8V CH1) it is tied to ground. |+| 2 | Vin1 | power_in | Channel 1 supply input. Absolute maximum 12V; requires a 10uF bypass capacitor (Cin1) to ground close to the pin. |+| 3 | GND | power_in | Channel 2 ground return. On adjustable versions this pin becomes the ADJ (feedback) pin, but on the BL1118CS8TR1833 (fixed 3.3V CH2) it is tied to ground. |+| 4 | Vin2 | power_in | Channel 2 supply input. Absolute maximum 12V; requires a 10uF bypass capacitor (Cin2) to ground close to the pin. |+| 5 | Vout2 | power_out | Channel 2 regulated output (3.3V on the -1833 variant, up to 1A). Tie in parallel with pin 6 and bypass with a 10uF output capacitor. |+| 6 | Vout2 | power_out | Channel 2 regulated output (paralleled with pin 5) for current sharing to the 1A load. |+| 7 | Vout1 | power_out | Channel 1 regulated output (paralleled with pin 8) for current sharing to the 1A load. |+| 8 | Vout1 | power_out | Channel 1 regulated output (1.8V on the -1833 variant, up to 1A). Tie in parallel with pin 7 and bypass with a 10uF output capacitor. |+| 9 | EP | power_in | Exposed thermal pad on the ESOP-8 package underside. Solder to the PCB ground copper pour for heat dissipation (θJC = 10°C/W, θJA = 63°C/W). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BL Shanghai Belling |+| Package | ESOP-8 |+| Category | PMIC |+| Pins | 9 |++## Ordering variants++- `BL1118CS8TR1833`++## CAD (KiCad official)++- Symbol: `BL1118CS8TR1833`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [BL Shanghai Belling datasheet](docs/bl1118cs8tr1833-datasheet.pdf) (8 pp, sha256 `85526dbc6c09a729`, 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/bl1118cs8tr1833-datasheet.pdf)
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