LM2901PWR from Texas Instruments, in a TSSOP-14. 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	1OUT	output	Open-collector output of comparator 1. Requires an external pull-up resistor to VCC (or another positive rail up to 36 V). Sinks up to ~16 mA typical.
2	2OUT	output	Open-collector output of comparator 2. Requires an external pull-up resistor to VCC or another positive rail up to 36 V.
3	VCC	power_in	Positive supply. Single-supply operation 2 V to 36 V, or split-supply ±1 V to ±18 V. Bypass locally with a 0.1 µF ceramic capacitor.
4	2IN-	input	Inverting input of comparator 2. Common-mode range includes ground; VICR from 0 V to VCC−1.5 V.
5	2IN+	input	Non-inverting input of comparator 2. Common-mode range includes ground.
6	1IN-	input	Inverting input of comparator 1. Common-mode range includes ground.
7	1IN+	input	Non-inverting input of comparator 1. Common-mode range includes ground.
8	3IN+	input	Non-inverting input of comparator 3. Common-mode range includes ground.
9	3IN-	input	Inverting input of comparator 3. Common-mode range includes ground.
10	4IN+	input	Non-inverting input of comparator 4. Common-mode range includes ground.
11	4IN-	input	Inverting input of comparator 4. Common-mode range includes ground.
12	GND	power_in	Ground / negative supply. In single-supply operation tie to system ground; in split-supply tie to V−.
13	4OUT	output	Open-collector output of comparator 4. Requires an external pull-up resistor to VCC or another positive rail up to 36 V.
14	3OUT	output	Open-collector output of comparator 3. Requires an external pull-up resistor to VCC or another positive rail up to 36 V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TSSOP-14
Category	Op-amp/Cmp
Pins	14

Ordering variants

Same part, different packaging or reel option.

LM2901PWR
LM2901PWRD
LM2901PWRDR
LM2901PWRN
LM2901PWRNE
LM2901PWRNS
LM2901PWRNSR

CAD (KiCad official)

Symbol: LM2901PWR
Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
3D model: TSSOP-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm2901pwr.step`	194 KB	You want the bare part, or you mark your own boards.
`lm2901pwr-etched.step`	2.2 MB	You want the part with `LM2901PWR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 547 faces against 237 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: Texas Instruments datasheet (53 pp, sha256 97e6781f0239a05e, retrieved 2026-08-17, tier: manufacturer)
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