TP6841S6-A 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	BST	passive	Bootstrap pin for the high-side N-channel MOSFET gate drive. Connect a 100nF ceramic capacitor from BST to SW; the capacitor is charged from the internal 4.0V rail when SW is low to generate a gate voltage above VIN.
2	GND	power_in	Device ground. Serves as the reference for the control circuitry and the return for the power stage. Absolute range Vss-0.3V to Vss+45V per the datasheet.
3	FB	input	Feedback input to the internal error amplifier. Connect an external resistor divider from VOUT to FB and GND to set the output voltage; internal reference VREF = 0.8V (typ, 0.776-0.824V). Abs max Vss-0.3V to Vss+6V.
4	EN	input	Enable input for the IC. Drive high (rising threshold ~1.3V) to enable the regulator, low (falling ~1.2V, shutdown below 0.3V) to disable. Can be tied to a resistive divider from VIN for programmable UVLO. Abs max Vss-0.3V to Vss+45V; EN input current ~2µA at VEN=5V.
5	VIN	power_in	Supply voltage input, 4.5V to 40V operating (abs max Vss+45V). Provides power to the internal high-side MOSFET drain and bias circuitry. Bypass with a 22µF ceramic capacitor to GND, plus a 0.1µF high-frequency capacitor placed close to the pin.
6	SW	output	Switch node output. Connects the source of the integrated high-side N-MOSFET and drain of the low-side N-MOSFET to the external inductor. High-side RDS(on) ~450mΩ, low-side ~270mΩ; high-side current limit ~2A. Abs max Vss-0.3V to VIN+0.3V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

TP6841S6-A

CAD (KiCad official)

Symbol: TP6841S6-A
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
`tp6841s6-a.step`	97 KB	You want the bare part, or you mark your own boards.
`tp6841s6-a-etched.step`	2.0 MB	You want the part with `TP6841S6-A` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 483 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 (9 pp, sha256 a31ecef83be4e8ea, 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