LP3201AB5F from LOWPOWER, 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	EN	input	Enable input, active high. Drive above VEN(H)=1.4V to enable the converter; drive below VEN(L)=0.4V to force shutdown (all functions disabled, supply current <1uA). Input low current 1uA @ VEN=5V.
2	GND	power_in	Device ground. Return for the input/output capacitors and the internal low-side synchronous rectifier.
3	LX	power_out	Switch-node output to the external inductor. Connects to the drains of the internal main P-channel (RDS(ON) ~270 mOhm) and synchronous N-channel (RDS(ON) ~130 mOhm) power MOSFETs. Absolute max -0.3V to 8.0V.
4	VIN	power_in	Power supply input, 2.5V to 5.5V (absolute max 8.0V, OVP at ~6.1V). Must be closely decoupled to GND with a 10uF or greater ceramic capacitor.
5	FB/VOUT	input	Feedback input. On the adjustable LP3201AB5F variant this is FB, tied to an external resistor divider from VOUT to set output voltage per VOUT = 0.6V * (1 + RUP/RDN), internal reference 0.6V. On the fixed-output variants (-12/-18/-33) this pin is tied directly to VOUT for internal feedback sensing. FB leakage 10nA typ.

Key specifications

Parameter	Value
Manufacturer	LOWPOWER
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

LP3201AB5F
LP3201AB5F-12B5F
LP3201AB5F-18B5F
LP3201AB5F-33B5F

CAD (KiCad official)

Symbol: LP3201AB5F
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lp3201ab5f.step`	85 KB	You want the bare part, or you mark your own boards.
`lp3201ab5f-etched.step`	1.9 MB	You want the part with `LP3201AB5F` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 476 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: LOWPOWER datasheet (10 pp, sha256 1cb8490cc52808bb, 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