LN4890MME-G from NATLINEAR, in a MSOP-8. 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	Chip enable input, active low. Drive low to place the amplifier in low-power shutdown mode (typ. 0.1 µA); drive high (VIH ≥ 1.2 V) for normal operation. VIL ≤ 0.4 V.
2	BYPASS	passive	Bypass capacitance input pin for the internal mid-supply bias reference. Connect a 1 µF ceramic capacitor from this pin to GND for pop/click suppression and PSRR performance.
3	+IN	input	Non-inverting (positive) differential audio input terminal to internal amplifier A1. Typically AC-coupled and referenced to BYPASS via an external resistor.
4	-IN	input	Inverting (negative) differential audio input terminal to internal amplifier A1. Combined with an external Rf feedback resistor sets the closed-loop gain (Av = -Rf/Rin).
5	VO1	output	Negative BTL output terminal (inverted phase). Drives one side of an 8Ω speaker load; delivers up to 1W into 8Ω at 5V VDD in combination with VO2.
6	VDD	power_in	Positive supply pin. Operating range 2.2 V to 5.0 V (absolute max 5.0 V). Decouple with a 1 µF capacitor to GND close to the pin.
7	GND	power_in	Device ground reference and return for supply, bias, and output currents.
8	VO2	output	Positive BTL output terminal (in-phase). Drives the opposite side of the 8Ω speaker load from VO1 to form the bridge-tied load; no output coupling capacitor required.

Key specifications

Parameter	Value
Manufacturer	NATLINEAR
Package	MSOP-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

LN4890MME-GMMA
LN4890MME-GMMC
LN4890MME-GMMD
LN4890MME-GMA
LN4890MME-GMC
LN4890MME-GMD

CAD (KiCad official)

Symbol: LN4890MME-G
Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
3D model: MSOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ln4890mme-g.step`	123 KB	You want the bare part, or you mark your own boards.
`ln4890mme-g-etched.step`	2.1 MB	You want the part with `LN4890MME-G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 522 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: NATLINEAR datasheet (14 pp, sha256 157f37ecb9961615, 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