component

LPA4890MSF

Public Made by Adom

by adom

LOWPOWER Audio Power OpAmps, MSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs lpa4890msf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
lpa4890msf-etched.fit.json lpa4890msf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lpa4890msf-etched.glb lpa4890msf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lpa4890msf-etched.step lpa4890msf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lpa4890msf.glb Publish 0.1.0 · Ray
lpa4890msf.kicad_mod Publish 0.1.0 · Ray
lpa4890msf.kicad_sym Publish 0.1.0 · Ray
lpa4890msf.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
lpa4890msf.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json lpa4890msf: specified limits as data (metadata.characteristics, 26 rows from the datasheet) · Ray
README.md lpa4890msf: specified limits as data (metadata.characteristics, 26 rows from the datasheet) · Ray

LPA4890MSF

LOWPOWER · Audio Power OpAmps · MSOP-8

LPA4890MSF from LOWPOWER, 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 Active-low shutdown control. Driving this pin below ~0.4V places the device in ultra-low-current (0.1µA typ) shutdown mode; driving above ~1.4V enables normal operation. Compatible with 0.4V logic thresholds.
2 BYPASS passive Bypass capacitor pin providing the internal VDD/2 common-mode reference voltage. Connect a bypass capacitor (typically 0.2µF-4.7µF) from this pin to GND; larger capacitance improves PSRR and reduces pop noise.
3 +IN input Non-inverting (positive) audio input of the first amplifier. Receives the internal common-mode voltage (VDD/2) via the BYPASS reference; used for single-ended or differential input configuration.
4 -IN input Inverting (negative) audio input of the first amplifier. Receives the audio input signal via the input coupling capacitor and input resistor Rin, and connects to the feedback resistor Rf that sets closed-loop gain.
5 VO1 output Negative BTL output of the LPA4890. Connects to one terminal of the load speaker and to the feedback resistor Rf that closes the gain loop around the first amplifier.
6 VDD power_in Analog supply input, 2.5V to 5.5V operating range (6V absolute max). Bypass locally with a 1µF ceramic decoupling capacitor to GND. Quiescent current is 2.5mA typ at 5.5V.
7 GND power_in Ground return for all circuitry. Should be tied to a solid ground plane; keep the return path short and low-impedance for best THD+N and PSRR.
8 VO2 output Positive BTL output of the LPA4890. Connects to the other terminal of the load speaker, forming a bridge-tied-load together with VO1 (no output coupling capacitor required).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LPA4890MSF

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input voltage to GND -0.3 6 V 3
Other pin voltage to GND -0.3 6 V 3
Junction temperature, TJMAX TJMAX 150 °C 3
Storage temperature range Tstg -65 150 °C 3
ESD susceptibility 2 kV 3
Maximum soldering temperature 260 °C at leads, 10 sec 3
Package dissipation (MSOP8) PD 0.9 W 3
Operation voltage (VDD) 2.5 5.5 V 1
Output offset voltage (measured differentially) VOS 5 25 mV Vi=0V,Av=2V/V,VDD=2.5V to 5.5V 3
Shutdown current ISHDN 0.1 2 µA VSHDN=0.35V, VDD=2.5V to 5.5V 3
Quiescent current IQ 2.5 mA VDD=5.5V, no load 3
Quiescent current IQ 1.4 mA VDD=3.6V, no load 3
Quiescent current IQ 1.06 mA VDD=2.5V, no load 3
Static drain-source on-state resistance RDS(ON) 400 mΩ VDD=5.5V, no load 3
Static drain-source on-state resistance RDS(ON) 500 mΩ VDD=3.6V, no load 3
Static drain-source on-state resistance RDS(ON) 700 mΩ VDD=2.5V, no load 3
Output power Po 1.2 W VDD=5.2V, RL=8Ω, THD=1%, f=1KHz 3
Start up voltage threshold VSHDN 1.4 V 3
Shutdown voltage threshold VSHDN 0.4 V 3
Total harmonic distortion plus noise THD+N 0.123 % VDD=5V,Po=1W,RL=8Ω,f=1KHz 3
Total harmonic distortion plus noise THD+N 0.13 % VDD=3.6V,Po=0.5W,RL=8Ω,f=1KHz 3
Total harmonic distortion plus noise THD+N 0.163 % VDD=2.5V,Po=0.2W,RL=8Ω,f=1KHz 3
Supply ripple rejection ratio PSRR -63 dB VDD=3.6V,Inputs ac-grounded with Ci=2uF,F=217Hz,V(ripple)=200mV 3
Common mode rejection ratio CMRR -62 dB VDD=3.6V,Vic=1Vpp,F=217Hz 3
Start-up time from shutdown Zt 45 mS VDD=3.6V 3
Thermal resistance θJA (MSOP8) θJA 165 °C/W 3

CAD (KiCad official)

  • Symbol: LPA4890MSF
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: lpa4890msf-etched.step / lpa4890msf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lpa4890msf.step / lpa4890msf.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lpa4890msf.step 123 KB You want the bare part, or you mark your own boards.
lpa4890msf-etched.step 2.1 MB You want the part with LPA4890MSF already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 529 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: LOWPOWER datasheet (10 pp, sha256 39fbf37faef97cac, 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