TP172CADJS5 from TECH PUBLIC, 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	Input supply voltage. Operating range 1.2 V to 5.5 V (absolute max 6.5 V vs GND). A 1 uF input capacitor to GND is recommended for stability.
2	GND	power_in	Device ground reference. Return path for supply and internal control circuitry.
3	EN	input	Enable control input. VIH >= 2 V (max) enables the regulator; VIL <= 0.6 V (min falling) forces shutdown. EN input current ~10 nA typ at 5 V. Absolute max -0.3 V to 6 V vs GND. Do not float.
4	SNS	input	Feedback (sense) input for the internal error amplifier; internal reference VFB = 0.8 V. Connect to an external resistor divider from VOUT to set the output: R1 = R2 * (VOUT/0.8V - 1), with R2 < 24 kOhm. SNS input current ~0.7 uA typ.
5	VOUT	power_out	Regulator output. Delivers up to 600 mA with typical dropout of 0.32 V at 600 mA / VOUT=3.3 V. Stable with a >=1 uF ceramic or tantalum output capacitor. When EN=0, an internal ~100 Ohm discharge resistance pulls VOUT down.

Key specifications

Parameter	Value
Manufacturer	TECH PUBLIC
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

TP172CADJS5

CAD (KiCad official)

Symbol: TP172CADJS5
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: TECH PUBLIC datasheet (9 pp, sha256 32123534387edee0, 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