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BL1117C-33CM

Public Made by Adom

by adom

BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs bl1117c-33cm: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
bl1117c-33cm-etched.fit.json bl1117c-33cm: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bl1117c-33cm-etched.glb bl1117c-33cm: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bl1117c-33cm-etched.step bl1117c-33cm: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bl1117c-33cm.glb Publish 0.1.0 · Ray 2mo ago
bl1117c-33cm.kicad_mod Publish 0.1.0 · Ray 2mo ago
bl1117c-33cm.kicad_sym Publish 0.1.0 · Ray 2mo ago
bl1117c-33cm.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray 2mo ago
bl1117c-33cm.step Publish 0.1.0 · Ray 2mo ago
package.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
page.json bl1117c-33cm: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
README.md bl1117c-33cm: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

BL1117C-33CM

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3L

BL1117C-33CM from BL Shanghai Belling, in a SOT-89-3L. 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 regulator. Return path for both quiescent current (~2mA typ) and the regulated load current up to 1A.
2 Vout power_out Regulated 3.3V output (3.234V-3.366V, ±2%) at up to 1A. A 10 µF tantalum output capacitor to GND is required for stability.
3 Vin power_in Unregulated input supply. Recommended operating range up to 12V (absolute max 15V). A 10 µF tantalum bypass capacitor to GND is recommended. Requires Vin ≥ 4.8V for 3.3V regulation at 1A (dropout 1.3V typ, 1.5V max).

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-89-3L
Category PMIC
Pins 3

Ordering variants

  • BL1117C-33CM33CM
  • BL1117C-33CM33AM
  • BL1117C-33CM12CM
  • BL1117C-33CM18CM
  • BL1117C-33CM25CM
  • BL1117C-33CM50CM
  • BL1117C-33CM33CX
  • BL1117C-33CM33AX
  • BL1117C-33CM12CX
  • BL1117C-33CM18CX
  • BL1117C-33CM25CX
  • BL1117C-33CM50CX
  • BL1117C-33CM33CY
  • BL1117C-33CM33AY
  • BL1117C-33CM12CY
  • BL1117C-33CM18CY
  • BL1117C-33CM25CY
  • BL1117C-33CM50CY

CAD (KiCad official)

  • Symbol: BL1117C-33CM
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3L (KiCad packages3D, STEP)
  • 3D model files: bl1117c-33cm-etched.step / bl1117c-33cm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl1117c-33cm.step / bl1117c-33cm.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: BL Shanghai Belling datasheet (11 pp, sha256 75593a439c9d03a8, 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