TPMAX4684EUB from TECH PUBLIC, in a MSOP-10L. 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	V+	power_in	Supply voltage VCC. Operating range 1.5V to 5.5V (absolute max -0.3V to +6.5V). Quiescent current <2µA typ.
2	NO1	passive	Analog/digital signal port for switch 1, normally open. Connects to COM1 when IN1 is logic high. Continuous current ±100mA max; on-resistance ~1Ω (typ 1.0Ω at VA=4.0-5.5V).
3	COM1	passive	Port 1 common data terminal. Connects to NC1 (IN1=0) or NO1 (IN1=1) per SEL logic. Break-before-make (500ns typ). Signal voltage range -0.3V to +5.5V.
4	IN1	input	Digital control input for switch 1. Selects COM1→NC1 (logic 0) or COM1→NO1 (logic 1). VIH ≥1.4V (VCC=1.5-3.3V) or ≥1.6V (VCC=3.3-5.5V); VIL ≤0.4V/0.6V. 1.8V logic compatible.
5	NC1	passive	Analog/digital signal port for switch 1, normally closed. Connects to COM1 when IN1 is logic low. Off-state leakage ±2.0µA max at VCOM=5.5V.
6	GND	power_in	Ground reference for the device.
7	NC2	passive	Analog/digital signal port for switch 2, normally closed. Connects to COM2 when IN2 is logic low. Off-state leakage ±2.0µA max at VCOM=5.5V.
8	IN2	input	Digital control input for switch 2. Selects COM2→NC2 (logic 0) or COM2→NO2 (logic 1). 1.8V logic compatible; same VIH/VIL thresholds as IN1.
9	COM2	passive	Port 2 common data terminal. Connects to NC2 (IN2=0) or NO2 (IN2=1) per SEL logic. Break-before-make (500ns typ). Signal voltage range -0.3V to +5.5V.
10	NO2	passive	Analog/digital signal port for switch 2, normally open. Connects to COM2 when IN2 is logic high. Continuous current ±100mA max; on-resistance ~1Ω (typ 1.0Ω at VA=4.0-5.5V).

Key specifications

Parameter	Value
Manufacturer	TECH PUBLIC
Package	MSOP-10L
Category	Interface
Pins	10

Ordering variants

Same part, different packaging or reel option.

TPMAX4684EUB

CAD (KiCad official)

Symbol: TPMAX4684EUB
Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
3D model: MSOP-10L (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tpmax4684eub.step`	148 KB	You want the bare part, or you mark your own boards.
`tpmax4684eub-etched.step`	2.4 MB	You want the part with `TPMAX4684EUB` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 610 faces against 177 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 (7 pp, sha256 463482766d2e9d0c, 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