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BL8558-28PRN

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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs bl8558-28prn: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers bl8558-28prn: viewers · Ray 2mo ago
bl8558-28prn-etched.fit.json bl8558-28prn: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
bl8558-28prn-etched.glb bl8558-28prn: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC bod… · Ray 14d ago
bl8558-28prn-etched.step bl8558-28prn: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC bod… · Ray 14d ago
bl8558-28prn.glb Publish 0.1.0 · Ray 2mo ago
bl8558-28prn.kicad_mod Publish 0.1.0 · Ray 2mo ago
bl8558-28prn.kicad_sym Publish 0.1.0 · Ray 2mo ago
bl8558-28prn.lbr Publish 0.1.0 · Ray 2mo ago
bl8558-28prn.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.1.0 · Ray 2mo ago
page.json bl8558-28prn: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC bod… · Ray 14d ago
README.md bl8558-28prn: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

BL8558-28PRN

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

BL8558-28PRN from BL Shanghai Belling, in a SOT-23-5. 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 Vin power_in Regulator input supply. Accepts up to 8V (recommended), 10V absolute max. Bypass with 1uF ceramic capacitor to GND close to the pin.
2 Vss power_in Ground / common return for the regulator.
3 CE input Chip Enable input. Drive high (Vceh >= 1.5V, up to Vin) to enable regulator; drive low (Vcel <= 0.25V) to enter standby (Istandby = 0.1uA typ). Internal pull-down resistor to GND (Rpd = 2-10 MOhm, 5 MOhm typ).
4 NC unconnected No internal connection. Leave floating or tie to GND per PCB preference.
5 Vout power_out Regulated output. Fixed 2.8V on BL8558-28PRN (±2%), 500mA max output current. Requires 3.3uF/4.7uF output capacitor for stability.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • BL8558-28PRN
  • BL8558-28PRNPRC
  • BL8558-28PRNPSA
  • BL8558-28PRNPSB
  • BL8558-28PRNPRM
  • BL8558-28PRNPT

CAD (KiCad official)

  • Symbol: BL8558-28PRN
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: bl8558-28prn-etched.step / bl8558-28prn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl8558-28prn.step / bl8558-28prn.glb are the bare package body.

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (10 pp, sha256 e45fcf409b9d0231, 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