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BL9161G-18BADRN

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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DFN-4L(1x1). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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BL9161G-18BADRN

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN-4L(1x1)

BL9161G-18BADRN from BL Shanghai Belling, in a DFN-4L(1x1). 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 Output voltage of the LDO regulator, rated for up to 300mA output current; a ceramic output capacitor of at least 1µF with ESR above 25mΩ is stated to ensure stability.
2 GND power_in Ground pin; the datasheet recommends separate ground planes for VIN and VOUT, each connected only at this GND pin.
3 EN input Chip enable: the LDO turns on when EN is above 1.2V and shuts down when EN falls below 0.4V, with an internal pull-down resistor; EN can be tied to VIN for continuous operation.
4 VIN power_in Power input voltage, specified at 2.2V to 6V operating range with an absolute maximum of -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 DFN-4L(1x1)
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: BL9161G-18BADRN
  • Footprint: Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm
  • 3D model: DFN-4L(1x1) (KiCad packages3D, STEP)
  • 3D model files: bl9161g-18badrn-etched.step / bl9161g-18badrn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl9161g-18badrn.step / bl9161g-18badrn.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 2026-10-09, 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