FM8002E from Shenzhen Fuman, in a SOP-8-150mil. 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	SHUTDOWN	input	Shutdown control input. Drive high (=VDD) to disable the amplifier and drop supply current to ~4.2 µA; drive low to enable normal operation. Must be driven to a valid logic level (a pull-up resistor is recommended when driven by a single-pole switch).
2	BYPASS	passive	Internal bias voltage reference (VDD/2) bypass node. Connect a 1.0 µF capacitor (CB) to GND as close as possible to the device to stabilize the internal bias and improve PSRR. Larger capacitance further improves PSRR.
3	+IN	input	Non-inverting audio input of the first op-amp. Typically biased to VDD/2 via the internal Bypass network in the standard inverting-gain configuration.
4	-IN	input	Inverting audio input of the first op-amp. Connect via Ci (0.1-0.39 µF) to the audio source and via Rf to VO1; closed-loop differential gain is AVD = 2 × (Rf/Ri).
5	VO1	output	BTL speaker output 1 (positive side of the bridge). Drives one terminal of the load (typ. 4-8 Ω); no external DC-blocking capacitor is required.
6	VDD	power_in	Positive supply. Operating range 1.6 V to 6 V (typ. 5 V); decouple with a 1.0 µF tantalum capacitor (Cs) to GND close to the pin.
7	GND	power_in	Device ground return. Connect to the system analog ground plane.
8	VO2	output	BTL speaker output 2 (negative side of the bridge). Driven by the internal fixed-gain second op-amp 180° out of phase with VO1 to double the swing across the load.

Key specifications

Parameter	Value
Manufacturer	Shenzhen Fuman
Package	SOP-8-150mil
Category	Op-amp/Cmp
Pins	8

CAD (KiCad official)

Symbol: FM8002E
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8-150mil (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`fm8002e.step`	122 KB	You want the bare part, or you mark your own boards.
`fm8002e-etched.step`	1.8 MB	You want the part with `FM8002E` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 434 faces against 147 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: Shenzhen Fuman datasheet (6 pp, sha256 47f8d9bc8ff76c50, 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