TPMP2359DJ from TECH PUBLIC, in a SOT-23-6. 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	BS	passive	Bootstrap pin. A capacitor connected between SW and BS forms a floating supply for the high-side switch driver. Absolute max V(BS) = (Vsw-0.3) to (Vsw+5)V.
2	GND	power_in	Device ground. Connect to a large copper area for thermal performance.
3	FB	input	Adjustable-version feedback input. Connect to the center of an external resistor divider to set Vout. Internal reference V(FB) = 0.8V (typ), absolute max -0.3 to 6V.
4	EN	input	Enable input. Drive high to enable the IC, drive low to disable and enter micro-power shutdown. EN rising threshold 1.15V typ (1.05-1.25V), hysteresis ~140mV. Absolute max -0.3 to 36V.
5	IN	power_in	Power supply input. Operating range 4V to 30V, absolute max 36V. Bypass with a low-ESR ceramic capacitor placed close to the pin.
6	SW	power_out	Switching node. Connect to the external inductor and bootstrap capacitor. Internal HS/LS MOSFETs (RDS(on) ~200mΩ/150mΩ) drive this node. Absolute max -0.3 to (VIN+0.5)V.

Key specifications

Parameter	Value
Manufacturer	TECH PUBLIC
Package	SOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

TPMP2359DJ

CAD (KiCad official)

Symbol: TPMP2359DJ
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tpmp2359dj.step`	97 KB	You want the bare part, or you mark your own boards.
`tpmp2359dj-etched.step`	2.0 MB	You want the part with `TPMP2359DJ` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 489 faces against 117 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: TECH PUBLIC datasheet (10 pp, sha256 bcf823901da346b6, 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