INA180B4IDBVR 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	IN+	input	Non-inverting current-sense amplifier input. For high-side sensing, connect to the bus/supply side of the sense resistor; for low-side sensing, connect to the load side of the sense resistor. Common-mode range -0.2 V to +26 V, independent of VS.
2	GND	power_in	Analog ground reference for the amplifier and output stage. Connect to system analog ground.
3	IN-	input	Inverting current-sense amplifier input. For high-side sensing, connect to the load side of the sense resistor; for low-side sensing, connect to the ground side of the sense resistor.
4	OUT	output	Buffered voltage output. Output voltage equals the sensed differential input voltage multiplied by the fixed gain of 200 V/V (A4 device). Slew rate 2 V/µs; drives ADC or comparator inputs.
5	VS	power_in	Positive power supply, 2.7 V to 5.5 V. Bypass to GND with a 0.1 µF ceramic capacitor placed close to the pin. Quiescent current 260 µA (max, INA180).

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.

INA180B4IDBVR
INA180B4IDBVT
INA180B4IDBVRIDGKR
INA180B4IDBVRIDGKT
INA180B4IDBVRIDSGR
INA180B4IDBVRIDSGT
INA180B4IDBVRIPWR
INA180B4IDBVRIPWT

CAD (KiCad official)

Symbol: INA180B4IDBVR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ina180b4idbvr.step`	85 KB	You want the bare part, or you mark your own boards.
`ina180b4idbvr-etched.step`	2.2 MB	You want the part with `INA180B4IDBVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 564 faces against 102 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 (50 pp, sha256 271a5242291d4eca, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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