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Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
docs	bl9161g-30barn: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	1mo ago
viewers	bl9161g-30barn: viewers · Ray	2mo ago
bl9161g-30barn-etched.fit.json	bl9161g-30barn: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	1mo ago
bl9161g-30barn-etched.glb	bl9161g-30barn: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray	14d ago
bl9161g-30barn-etched.step	bl9161g-30barn: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray	14d ago
bl9161g-30barn.glb	Publish 0.1.0 · Ray	2mo ago
bl9161g-30barn.kicad_mod	Publish 0.1.0 · Ray	2mo ago
bl9161g-30barn.kicad_sym	Publish 0.1.0 · Ray	2mo ago
bl9161g-30barn.lbr	Publish 0.1.0 · Ray	2mo ago
bl9161g-30barn.step	Publish 0.1.0 · Ray	2mo ago
package.json	Publish 0.2.0 · Ray	2mo ago
page.json	bl9161g-30barn: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray	14d ago
README.md	bl9161g-30barn: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray	1mo ago

BL9161G-30BARN

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

BL9161G-30BARN 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	Power input voltage. Operating range 2.2V to 6V (absolute max +6V). Requires 1µF input capacitor (CIN) for stability.
2	GND	power_in	Ground reference for the regulator.
3	EN	input	Chip enable pin (active high) with internal pull-down resistor. VIH ≥ 1.2V starts the regulator; VIL ≤ 0.4V forces shutdown (ISTBY ≈ 0.01µA typical). Absolute max -0.3V to VIN.
4	NC	unconnected	No internal connection. May be left floating or tied to any potential.
5	VOUT	power_out	Regulated output voltage (3.0V for the -30 option, ±2% accuracy with B suffix). Delivers up to 300mA. Requires only 1µF output capacitor for stability; ≥2.2µF is recommended for 1.2V/1.5V/1.8V variants.

Key specifications

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

Ordering variants

BL9161G-30BARN
BL9161G-30BARNURN
BL9161G-30BARNRT
BL9161G-30BARNDRN

CAD (KiCad official)

Symbol: BL9161G-30BARN
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)
3D model files: bl9161g-30barn-etched.step / bl9161g-30barn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl9161g-30barn.step / bl9161g-30barn.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`bl9161g-30barn.step`	85 KB	You want the bare part, or you mark your own boards.
`bl9161g-30barn-etched.step`	2.6 MB	You want the part with `BL9161G-30BARN` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 625 faces against 102 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