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BL8555-30PRA

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by Ray

BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Datasheet

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Contents

README

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BL8555-30PRA

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

BL8555-30PRA 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 VDD power_in Input supply pin. Accepts 1.8V to 8V (10V absolute max); a 1uF input capacitor is recommended for stability.
2 GND power_in Ground reference pin for the regulator.
3 CE input Chip enable input. Drive high (VceH >= 1.5V, up to Vin) to enable the regulator; drive low (VceL <= 0.25V) to place the part in 0.1uA standby. Internal pull-down resistance is 5MOhm (typ).
4 NC unconnected No internal connection. Leave floating or tie to a convenient net.
5 VOUT power_out Regulated 3.0V output. Delivers up to 150mA with short-circuit protection at ~20mA (Vout=0V). A 1uF/2.2uF output capacitor is required for loop 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.

  • BL8555-30PRA
  • BL8555-30PRAPRB
  • BL8555-30PRAPQ

CAD (KiCad official)

  • Symbol: BL8555-30PRA
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (9 pp, sha256 447ecc9000aa319a, 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