LN1154B302MR-G from NATLINEAR, in a SOT-23-5L. 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	Regulator input supply. Operating range 2.0 V to 7 V (abs max VSS-0.3 to VSS+8 V). Bypass to VSS with ≥2.2 µF ceramic (C1) close to the pin.
2	VSS	power_in	Ground / common return for the regulator. Reference for VIN, VOUT and CE thresholds.
3	CE	input	Chip enable, active-high (suffix 'B' variant has an internal pull-down resistor to VSS). VCEH ≥ 1.6 V enables the regulator; VCEL ≤ 0.5 V shuts it down. Absolute max VSS-0.3 V to VIN+0.3 V.
4	NC	unconnected	No internal connection on the SOT-23-5 package. May be left floating or tied to VSS for board layout convenience.
5	VOUT	power_out	Regulated 3.0 V output (this B302 option), ±2% accuracy, up to 300 mA when VIN ≥ VOUT+1.0 V. Requires ≥2.2 µF output capacitor (C2) to VSS for stability.

Key specifications

Parameter	Value
Manufacturer	NATLINEAR
Package	SOT-23-5L
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

LN1154B302MR-GM
LN1154B302MR-GD

CAD (KiCad official)

Symbol: LN1154B302MR-G
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5L (KiCad packages3D, STEP)

Provenance

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

Datasheet: NATLINEAR datasheet (7 pp, sha256 7e6c4da996f29dee, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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