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BL9161G-15BARN

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

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BL9161G-15BARN

BL(Shanghai Belling) · Linear Voltage Regulators (LDO) · SOT-23-5

BL9161G-15BARN 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, operating range 2.2V to 6V (absolute maximum -0.3V to +6V).
2 GND power_in Ground.
3 EN input Chip enable, active high with internal pull-down resistor; above 1.2V turns the LDO on, below 0.4V shuts it down.
4 NC unconnected No connection.
5 VOUT power_out Regulated output voltage (1.5V for this variant), up to 300mA output current.

Key specifications

Parameter Value
Manufacturer BL(Shanghai Belling)
Package SOT-23-5
Category Power Supply Chip
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 Supply Voltage VIN -0.3 6 V 2
EN Pin Input Voltage -0.3 6 V -0.3V to VIN (VIN max 6V) 2
Output Current IOUT 300 mA 2
Maximum Junction Temperature TJ 150 °C 2
Operating Temperature Range -40 85 °C Note 2: specs guaranteed 0°C to 70°C 2
Storage Temperature Range -65 125 °C 2
Lead Temperature 300 °C Soldering, 10s 2
Thermal Resistance Junction to Ambient ӨJA 250 ℃/W SOT23-5 2
Thermal Resistance Junction to Case ӨJC 130 ℃/W SOT23-5 2
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=1Ω 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
Load Regulation ΔVLOAD 20 mV 1mA<IOUT<300mA 4
Output Voltage Temperature Coefficient TCVOUT 60 ppm/℃ IOUT=1mA, ±60 4
Standby Current ISTBY 0.01 1 µA VEN=GND, Shutdown 4
EN Input Bias Current IIBSD 2 µA VEN=GND or VIN 4
EN Logic Low Threshold VIL 0.4 V VIN=3V to 5.5V, Shutdown 4
EN Logic High Threshold VIH 1.2 V VIN=3V to 5.5V, Start up 4
Output Noise Voltage eNO 180 µVRMS 10Hz to 100KHz, 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

CAD (KiCad official)

  • Symbol: BL9161G-15BARN
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: bl9161g-15barn-etched.step / bl9161g-15barn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl9161g-15barn.step / bl9161g-15barn.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 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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