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BL1084-33-CY

Public Made by Adom

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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs bl1084-33-cy: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 24d 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
bl1084-33-cy-etched.fit.json bl1084-33-cy: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bl1084-33-cy-etched.glb bl1084-33-cy: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 24d ago
bl1084-33-cy-etched.step bl1084-33-cy: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 24d ago
bl1084-33-cy.glb Publish 0.1.0 · Ray 2mo ago
bl1084-33-cy.kicad_mod Publish 0.1.0 · Ray 2mo ago
bl1084-33-cy.kicad_sym Publish 0.1.0 · Ray 2mo ago
bl1084-33-cy.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
bl1084-33-cy.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.2.0 · 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 bl1084-33-cy: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 24d ago
README.md bl1084-33-cy: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

BL1084-33-CY

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)

BL1084-33-CY from BL Shanghai Belling, in a TO-252-2(DPAK). 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 fixed-voltage regulator. Return path for all quiescent current (~5 mA typ).
2 Vout power_out Regulated 3.3V output (3.25 V to 3.35 V typical at 25 °C). Sourcing up to 5 A. Requires a 22 µF tantalum output capacitor for stability.
3 Vin power_in Unregulated input supply. Must be at least Vout + 1.4V (typ) at 5A. Absolute maximum 15V. Requires a 10 µF tantalum bypass capacitor to GND.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package TO-252-2(DPAK)
Category PMIC
Pins 3

Ordering variants

  • BL1084-33-CYY
  • BL1084-33-CYS
  • BL1084-33-CYS1
  • BL1084-33-CYZ

CAD (KiCad official)

  • Symbol: BL1084-33-CY
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
  • 3D model files: bl1084-33-cy-etched.step / bl1084-33-cy-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl1084-33-cy.step / bl1084-33-cy.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
bl1084-33-cy.step 119 KB You want the bare part, or you mark your own boards.
bl1084-33-cy-etched.step 2.0 MB You want the part with BL1084-33-CY already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 511 faces against 83 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 (13 pp, sha256 bb5efe271c8036b3, 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