TLV3491AIDBVR from Texas Instruments, in a SOT-23-5. 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	OUT	output	Push-pull comparator output. Drives rail-to-rail with typical output current capability suitable for direct logic interfacing.
2	V-	power_in	Negative supply / ground. Connect to system ground for single-supply operation (2.5V to 5.5V total supply).
3	IN+	input	Non-inverting comparator input. Rail-to-rail input range extends 200mV beyond both supply rails.
4	IN-	input	Inverting comparator input. Rail-to-rail input range extends 200mV beyond both supply rails.
5	V+	power_in	Positive supply pin. Operating range 2.5V to 5.5V (single supply) or ±1.25V to ±2.75V (dual supply). Quiescent current typically 1.2µA.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-5
Category	Op-amp/Cmp
Pins	5

Ordering variants

Same part, different packaging or reel option.

TLV3491AIDBVR
TLV3491AIDBVT

CAD (KiCad official)

Symbol: TLV3491AIDBVR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (23 pp, sha256 d4693835061729d3, 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