TP6841S6 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. Connect a 100nF ceramic capacitor from BST to SW to generate the boosted gate-drive rail for the high-side N-channel MOSFET (charged to ~4.0V above SW when SW is low).
2	GND	power_in	Ground return for the device. Also serves as the PGND for the low-side power switch; connect directly to a solid ground plane.
3	FB	input	Feedback input to the internal transconductance error amplifier. Connect an external resistor divider from VOUT to FB to GND to set the output voltage; internal reference V_REF = 0.8V (typ, 0.776-0.824V).
4	EN	input	Enable input. Drive high (V_ENH ≥ 1.3V typ) to enable the regulator; drive low (V_ENL ≤ 1.2V typ, shutdown below 0.3V) to disable. Absolute max rating V_SS-0.3 to V_SS+45V allows tying through a divider from V_IN for programmable UVLO. Input current ≈2µA at 5V.
5	VIN	power_in	Supply voltage input, 4.5V to 40V operating range (45V abs max). Bypass with a 22µF ceramic capacitor to GND placed close to the pin, plus an optional 0.1µF for high-frequency filtering.
6	SW	output	Switch node - the common drain of the integrated high-side and low-side N-channel power MOSFETs (R_DSON_H ≈ 450mΩ, R_DSON_L ≈ 270mΩ). Connect the external inductor between SW and the regulator output. SW absolute range V_SS-0.3 to V_IN+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

CAD (KiCad official)

Symbol: TP6841S6
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

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

Datasheet: TECH PUBLIC datasheet (9 pp, sha256 5c91752cf208f8c4, 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