BL9110-330BPFB
Public Unreviewedby Ray
BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownBL9110-330BPFB
BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223
BL9110-330BPFB 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 / device return. Reference for the internal bandgap, error amplifier and output pass FET; must be the low-impedance return for both input and output decoupling capacitors. |
| 2 | VOUT | power_out | Regulated 3.3V output pin, up to 1A load current. Requires a ≥2.2uF ceramic output capacitor to GND for stability; internal ~50Ω discharge resistor pulls VOUT down when the regulator is disabled. |
| 3 | VDD | power_in | Unregulated supply input, 2.5V to 6V absolute range (VOUT+VDROP minimum for regulation). Bypass with ≥2.2uF ceramic capacitor to GND close to the pin; also serves as the tab connection on SOT-223-3. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOT-223 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
BL9110-330BPFBBL9110-330BPFBFABL9110-330BPFBFCBL9110-330BPFBFDBL9110-330BPFBAABL9110-330BPFBBABL9110-330BPFBBBBL9110-330BPFBCABL9110-330BPFBDABL9110-330BPFBEABL9110-330BPFBEBBL9110-330BPFBGABL9110-330BPFBGBBL9110-330BPFBGCBL9110-330BPFBHABL9110-330BPFBIABL9110-330BPFBIBBL9110-330BPFBICBL9110-330BPFBJA
CAD (KiCad official)
- Symbol:
BL9110-330BPFB - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
bl9110-330bpfb.step |
64 KB | You want the bare part, or you mark your own boards. |
bl9110-330bpfb-etched.step |
2.7 MB | You want the part with BL9110-330BPFB already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 653 faces against 75 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BL Shanghai Belling datasheet (30 pp, sha256
b94966cd4c52e86b, 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).