component

BL9161G-33BAURN

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BL(Shanghai Belling) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SC-70-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)bl9161g-33baurnfactory-2.0.0extractor-text

Verified BL9161G-33BAURN

by Ray · last 4 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

4 Nov 2026RayPublished by the parts factory: tier lcsc, 5 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BL9161G-33BAURN · SC-70-5 · 5 pins
  • ✓copper: 5 copper pads, none touching another net
  • ✓datasheet: all 5 pin names found in the 12-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-353_SC-70-5
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-x5cmohj5/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 5 pins = 5 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 5 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bl9161g-33baurn.kicad_sym✓ bl9161g-33baurn.kicad_mod✓ bl9161g-33baurn.step
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Ray Publish 0.1.0 f69d56b 2d ago

BL9161G-33BAURN

BL(Shanghai Belling) · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SC-70-5

BL9161G-33BAURN from BL(Shanghai Belling), in a SC-70-5. 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, with the datasheet's electrical characteristics giving an input range of 2.2 V to 6 V.
2 GND power_in Ground pin, which should be connected to a clean analog ground with separate VIN and VOUT ground planes joined only at this pin.
3 EN input Chip enable pin with an internal pull-down resistor; the LDO turns on when EN is above 1.2 V and shuts down when it falls below 0.4 V.
4 NC unconnected No connection.
5 VOUT power_out Regulated output voltage, which needs a ceramic output capacitor of at least 1 µF with ESR greater than 25 mΩ for stability.

Key specifications

Parameter Value
Manufacturer BL(Shanghai Belling)
Package SC-70-5
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
Input Voltage (absolute maximum) VIN -0.3 6 V 2
EN Pin Input Voltage -0.3 V Upper limit is VIN (as printed: -0.3V to VIN) 2
Output Voltages -0.3 V Upper limit is VIN+0.3V (as printed: -0.3V to VIN+0.3V) 2
Output Current 300 mA 2
Maximum Junction Temperature TJ 150 °C 2
Operating Temperature Range TA -40 85 °C 2
Maximum Operating Junction Temperature TJ(MAX) 125 °C Recommended operating conditions per application text 7
Storage Temperature Range TSTG -65 125 °C 2
Lead Temperature (Soldering) 300 °C Soldering, 10s 2
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 to 100KHz, IOUT=100mA 4
Power Supply Rejection Ratio at 217Hz PSRR -75 dB f=217Hz, IOUT=10mA 4
Power Supply Rejection Ratio at 1kHz PSRR -71 dB f=1KHz, IOUT=10mA 4
Power Supply Rejection Ratio at 10kHz PSRR -55 dB f=10KHz, IOUT=10mA 4
Thermal Shutdown Temperature TSD 170 °C Shutdown, Temp increasing 4
Thermal Shutdown Hysteresis TSDHY 30 °C 4
Junction-to-Ambient Thermal Resistance (SC70-5) ΘJA 333 ℃/W Approximately 1 square inch of 1 oz copper (Note 3) 2
Junction-to-Case Thermal Resistance (SC70-5) ΘJC 170 ℃/W 2

CAD (KiCad official)

  • Symbol: BL9161G-33BAURN
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC-70-5 (KiCad packages3D, STEP)
  • 3D model files: bl9161g-33baurn-etched.step / bl9161g-33baurn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl9161g-33baurn.step / bl9161g-33baurn.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 1f5c35b45955d0cb, retrieved 2026-11-04, 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