component

BL9161G-12BARN

Public Made by Adom

by adom

BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)bl9161g-12barnfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 17d ago
viewers bl9161g-12barn: viewers · Ray 17d ago
bl9161g-12barn-etched.glb Publish 0.1.0 · Ray 17d ago
bl9161g-12barn-etched.step bl9161g-12barn: factory component page (tier=lcsc) · Ray 17d ago
bl9161g-12barn-hero.glb bl9161g-12barn: hero GLB from the etched model (keeps the MPN mark) · Ray 17d ago
bl9161g-12barn-hero.overlay.json Publish 0.1.0 · Ray 17d ago
bl9161g-12barn.glb Publish 0.1.0 · Ray 17d ago
bl9161g-12barn.kicad_mod Publish 0.1.0 · Ray 17d ago
bl9161g-12barn.kicad_sym Publish 0.1.0 · Ray 17d ago
bl9161g-12barn.lbr Publish 0.1.0 · Ray 17d ago
bl9161g-12barn.step Publish 0.1.0 · Ray 17d ago
package.json Publish 0.1.0 · Ray 17d ago
page.json Set visibility: public · Ray 17d ago
README.md Publish 0.1.0 · Ray 17d ago

BL9161G-12BARN

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

BL9161G-12BARN from BL Shanghai Belling, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VIN power_in Power input voltage; the datasheet gives an operating range of 2.2V to 6V and an absolute maximum of -0.3V to +6V.
2 GND power_in Ground reference pin; the datasheet asks that the PCB use a separate ground plane for VIN and VOUT, connected only at the GND pin.
3 EN input Chip enable with an internal pull-down resistor; the LDO turns on when EN is above 1.2V (VIH) and shuts down below 0.4V (VIL), and the EN pin voltage is limited to -0.3V to VIN.
4 NC unconnected No connection.
5 VOUT power_out Regulated output voltage; the output current is limited to 300mA and the output voltage pin is rated -0.3V to VIN+0.3V.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Voltage VIN 2.2 6 V 4
Output Voltage Accuracy VOUT -2 2 % VIN=Vout+1V, IOUT=1mA 4
Current Limit ILIM 360 450 mA RLOAD=1 4
Quiescent Current IQ 70 110 µA VEN>1.2V, IOUT=0mA 4
Dropout Voltage VDROP 135 200 mV IOUT=200mA, VOUT=3.3V 4
Dropout Voltage VDROP 205 300 mV IOUT=300mA, VOUT=3.3V 4
Line Regulation ΔVLINE 0.02 0.17 %/V VIN=Vout+1V to 5.5V, IOUT=1mA 4
Output Voltage Temperature Coefficient TCVOUT -60 60 ppm/℃ IOUT=1mA 4
Standby Current ISTBY 0.01 1 µA VEN=GND, Shutdown 4
EN Input Threshold Logic Low VIL 0.4 V VIN=3V to 5.5V, Shutdown 4
EN Input Threshold Logic High VIH 1.2 V VIN=3V to 5.5V, Start up 4
Load Regulation ΔVLOAD 20 mV 1mA<IOUT<300mA 4
EN Input Bias Current IIBSD 2 µA VEN=GND or VIN 4
Output Noise Voltage eNO 180 VRMS 10Hz to100KHz, IOUT=100mA 4
Power Supply Rejection Ratio PSRR -75 dB f=217Hz, IOUT=10mA 4
Power Supply Rejection Ratio PSRR -71 dB f=1KHz, IOUT=10mA 4
Power Supply Rejection Ratio PSRR -55 dB f=10KHz, IOUT=10mA 4
Thermal Shutdown Temperature TSD 170 ℃ Shutdown, Temp increasing 4
Thermal Shutdown Hysteresis TSDHY 30 ℃ 4
Input Supply Voltage (absolute maximum) VIN -0.3 6 V 2
EN Pin Input Voltage (upper limit VIN) -0.3 V 2
Output Voltages (upper limit VIN+0.3V) -0.3 V 2
Output Current 300 mA 2
Maximum Junction Temperature 150 °C 2
Operating Temperature Range -40 85 °C Note 2: guaranteed 0°C to 70°C; -40°C to 85°C assured by design and characterization 2
Storage Temperature Range -65 125 °C 2
Lead Temperature (Soldering) 300 °C Soldering, 10s 2
Junction-to-Ambient Thermal Resistance (SOT23-5) ӨJA 250 °C/W 2
Junction-to-Case Thermal Resistance (SOT23-5) ӨJC 130 °C/W 2

CAD (KiCad official)

  • Symbol: BL9161G-12BARN
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: bl9161g-12barn-etched.step / bl9161g-12barn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl9161g-12barn.step / bl9161g-12barn.glb are the bare package body.

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (12 pp, sha256 74f47540de0b9365, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF