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BL1117-25CX

Public Made by Adom

by adom

BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. 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
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docs bl1117-25cx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain ST… · Ray 24d ago
viewers bl1117-25cx: viewers · Ray 2mo ago
bl1117-25cx-etched.fit.json bl1117-25cx: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bl1117-25cx-etched.glb bl1117-25cx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain ST… · Ray 24d ago
bl1117-25cx-etched.step bl1117-25cx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain ST… · Ray 24d ago
bl1117-25cx.glb Publish 0.1.0 · Ray 2mo ago
bl1117-25cx.kicad_mod Publish 0.1.0 · Ray 2mo ago
bl1117-25cx.kicad_sym Publish 0.1.0 · Ray 2mo ago
bl1117-25cx.lbr bl1117-25cx: factory component page (tier=lcsc) · Ray 2mo ago
bl1117-25cx.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.1.0 · Ray 2mo ago
page.json bl1117-25cx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain ST… · Ray 24d ago
README.md bl1117-25cx: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

BL1117-25CX

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3

BL1117-25CX from BL Shanghai Belling, in a SOT-223-3. 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. Also serves as the return current path; the SOT-223 tab is electrically connected to this pin for thermal dissipation.
2 Vout power_out Regulated output voltage pin. For BL1117-25 the nominal output is 2.5V (min 2.45V, typ 2.5V, max 2.55V) at up to 1A load. A 10µF tantalum or MLCC output capacitor is recommended for stability.
3 Vin power_in Unregulated input supply pin. Operating input voltage up to 12V (15V absolute max). A 10µF tantalum or MLCC bypass capacitor is recommended close to this pin.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-223-3
Category PMIC
Pins 3

Ordering variants

  • BL1117-25CX
  • BL1117-25CX25CY

CAD (KiCad official)

  • Symbol: BL1117-25CX
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3 (KiCad packages3D, STEP)
  • 3D model files: bl1117-25cx-etched.step / bl1117-25cx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl1117-25cx.step / bl1117-25cx.glb are the bare package body.

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (15 pp, sha256 a7fe7f5c0846d4ca, 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