component

BL9161G-18BPRT

Public Unreviewed

by Ray

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

componentpmicbl9161g-18bprt
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

PCB Footprint

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Datasheet

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Download PDF
Contents

README

markdown

BL9161G-18BPRT

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3

BL9161G-18BPRT from BL Shanghai Belling, in a SOT-23-3. 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 LDO regulator.
2 VOUT power_out Regulated output voltage (1.8V for -18B variant, ±2% accuracy). Rated for up to 300mA. Requires a minimum 1µF ceramic output capacitor for stability (≥2.2µF recommended for 1.2V/1.5V/1.8V options).
3 VIN power_in Power input voltage, 2.2V to 6V operating range (absolute max -0.3V to +6V). Bypass with 1µF ceramic capacitor to GND.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-23-3
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • BL9161G-18BPRT
  • BL9161G-18BPRTRN
  • BL9161G-18BPRTURN
  • BL9161G-18BPRTDRN

CAD (KiCad official)

  • Symbol: BL9161G-18BPRT
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
bl9161g-18bprt.step 59 KB You want the bare part, or you mark your own boards.
bl9161g-18bprt-etched.step 2.4 MB You want the part with BL9161G-18BPRT already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 582 faces against 69 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 (12 pp, sha256 74f47540de0b9365, 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