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BL9161G-15BADRN

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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DFN1x1-4L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BL9161G-15BADRN

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN1x1-4L

BL9161G-15BADRN from BL Shanghai Belling, in a DFN1x1-4L. 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 VOUT power_out Regulated output voltage of the LDO, rated for up to 300mA, with the absolute maximum output voltage limited to -0.3V to VIN+0.3V.
2 GND power_in Ground reference pin; the datasheet recommends returning the input and output capacitors to a clean analog ground connected only at this pin.
3 EN input Chip enable input with an internal pull-down resistor; the LDO turns on above 1.2V and shuts down below 0.4V, and the EN pin voltage must not exceed VIN per the absolute maximum ratings.
4 VIN power_in Power input voltage, specified from 2.2V to 6V (absolute maximum -0.3V to +6V).
5 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package DFN1x1-4L
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
Output Voltage Accuracy VOUT -2 2 % VIN=Vout+1V, IOUT=1mA 4
Input Voltage VIN 2.2 6 V 4
Input Supply Voltage (VIN) VIN -0.3 6 V 2
EN Pin Input Voltage VEN -0.3 V Maximum printed as VIN 2
Output Voltages VOUT -0.3 V Maximum printed as VIN+0.3V 2
Output Current IOUT 300 mA 2
Maximum Junction Temperature TJ 150 °C 2
Storage Temperature Range TSTG -65 125 °C 2
Lead Temperature (Soldering) 300 °C 10s 2
Operating Temperature Range TA -40 85 °C Note 2: guaranteed 0°C to 70°C; -40°C to 85°C assured by design and characterization 2
Maximum Operating Junction Temperature TJ(MAX) 125 °C Stated in application text for operating-condition calculation 7
Current Limit ILIM 360 450 mA RLOAD=1 (Ω as printed without symbol) 4
Quiescent Current IQ 70 110 µA VEN>1.2V, IOUT=0mA 4
Line Regulation ∆VLINE 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 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
Load Regulation ∆VLOAD 20 mV 1mA<IOUT<300mA 4
Output Noise Voltage eNO 180 VRMS 10Hz to100KHz, 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 ℃ Shutdown, Temp increasing 4
Thermal Shutdown Hysteresis TSDHY 30 ℃ 4

CAD (KiCad official)

  • Symbol: BL9161G-15BADRN
  • Footprint: Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm
  • 3D model: DFN1x1-4L (KiCad packages3D, STEP)
  • 3D model files: bl9161g-15badrn-etched.step / bl9161g-15badrn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl9161g-15badrn.step / bl9161g-15badrn.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 2026-10-18, 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