BL9162-330BARN from BL Shanghai Belling, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VIN	power_in	Power input voltage. Operating range 1.6V to 5.5V (absolute max 6V). Requires ≥1µF ceramic input capacitor (C1) close to the pin.
2	GND	power_in	Device ground reference for the regulator and reference. Connect to the system ground plane.
3	EN	input	Chip enable input with internal pull-down resistor. Active-high (VIH ≥ 1.2V enables regulator, VIL ≤ 0.4V forces shutdown, ~0.1µA standby). EN input range -0.3V to VIN.
4	NC	unconnected	No internal connection. Leave floating or tie to any convenient node; not internally bonded.
5	VOUT	power_out	Regulated output voltage (3.3V for the -330 option). Delivers up to 300mA; current-limit typ 350mA, short-circuit current typ 180mA. Requires only 1µF ceramic output capacitor (C2) for stability.

Key specifications

Parameter	Value
Manufacturer	BL Shanghai Belling
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

BL9162-330BARN
BL9162-330BARNURN
BL9162-330BARNDRN

CAD (KiCad official)

Symbol: BL9162-330BARN
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: BL Shanghai Belling datasheet (14 pp, sha256 8e3e5e0499cd6d76, retrieved 2026-08-17, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF