FP130AKR-LF from Advanced Analog Technology, in a SOT-23-5L. 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	Current detect output. Emitter of internal NPN transistor sources current proportional to (VIP-VIN)/RG1; connect load resistor RL from OUT to GND to convert to voltage. Output impedance 1 GΩ
2	GND	power_in	IC ground return.
3	VIP	input	Positive (non-inverting) input of the differential OPA. Connect via gain resistor RG1 to the high side of the sense resistor RS. Input bias current typ 2 µA; common-mode range 2.7-28V.
4	VIN	input	Negative (inverting) input of the differential OPA. Connect via gain resistor RG2 to the low side of the sense resistor RS (the load side). Input bias current typ 2 µA; common-mode range 2.7-28V.
5	VCC	power_in	IC power supply. Independent from the sensed rail; operating range 2.7-28V. Quiescent current typ 400 µA at VCC=28V.

Key specifications

Parameter	Value
Manufacturer	Advanced Analog Technology
Package	SOT-23-5L
Category	Op-amp/Cmp
Pins	5

Ordering variants

Same part, different packaging or reel option.

FP130AKR-LF

CAD (KiCad official)

Symbol: FP130AKR-LF
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5L (KiCad packages3D, STEP)

Provenance

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

Datasheet: Advanced Analog Technology datasheet (10 pp, sha256 1c72ad2d8f170646, 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