LTP3333NXT5 from Linearin, 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	IN	power_in	Supply input pin, 2.5 V to 6.0 V range. Must be closely decoupled to GND with a 1 µF or greater ceramic capacitor. Absolute maximum -0.3 V to 6.5 V.
2	GND	power_in	Ground return pin. Wide copper trace recommended for both IN and GND for stability and low noise.
3	EN	input	Enable control input, active high. VIH >= 1.4 V, VIL <= 0.4 V. Input current typ 0 µA (max 0.1 µA). Do not leave EN floating; tie to IN for always-on operation.
4	NC	unconnected	No connection. Leave floating or tie to GND per PCB convenience.
5	OUT	power_out	Regulated output pin, 3.3 V fixed (LTP3333). Up to 300 mA load, 500 mA current-limit clamp. Bypass with a 1 µF (1-2.2 µF, ESR 5-100 mΩ, X7R/X5R) ceramic capacitor to ground for stability.

Key specifications

Parameter	Value
Manufacturer	Linearin
Package	SOT-23-5L
Category	Power Supply Chip
Pins	5

Ordering variants

Same part, different packaging or reel option.

LTP3333NXT5
LTP3333NXT5NXC5
LTP3333NXT5NXF4
LTP3333NXT5NXFU4
LTP3333NXT5XT3
LTP3333NXT5XT4

CAD (KiCad official)

Symbol: LTP3333NXT5
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: Linearin datasheet (15 pp, sha256 9f81887424dbdd45, 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