component

SM8081AAC

Public Made by Adom

by adom

Silergy Corp DC-DC Converters, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs sm8081aac: 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
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 sm8081aac: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md sm8081aac: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
sm8081aac-etched.fit.json sm8081aac: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sm8081aac-etched.glb sm8081aac: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sm8081aac-etched.step sm8081aac: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sm8081aac.glb Publish 0.1.0 · Ray
sm8081aac.kicad_mod Publish 0.1.0 · Ray
sm8081aac.kicad_sym Publish 0.1.0 · Ray
sm8081aac.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
sm8081aac.step Publish 0.1.0 · Ray

SM8081AAC

Silergy Corp · DC-DC Converters · SOT-23-5

SM8081AAC from Silergy Corp, 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 EN input Enable control input. Pull high (VEN,H ≥ 1.2V) to turn the regulator on; pull low (VEN,L ≤ 0.4V) to shut down. Do not leave floating. Absolute max VIN + 0.6V.
2 GND power_in Device ground. Connect to system ground plane; return path for input/output capacitors and internal low-side switch.
3 LX output Switching node. Connect to the external inductor. Internal top (PMOS) and bottom (NMOS) power switches meet at this pin. Absolute max −0.3V to 6.0V (transient −3V/+7V <40ns). Also case position for θJC.
4 IN power_in Input supply pin, 2.5V to 5.5V operating (6.0V abs max). Decouple to GND with at least a 10µF ceramic capacitor placed close to the pin.
5 FB input Output feedback pin. Connect to the mid-point of the external resistor divider to program VOUT: VOUT = 0.6V × (1 + RH/RL). Internal reference VREF = 0.6V (typ).

Key specifications

Parameter Value
Manufacturer Silergy Corp
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • SM8081AAC

CAD (KiCad official)

  • Symbol: SM8081AAC
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: sm8081aac-etched.step / sm8081aac-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm8081aac.step / sm8081aac.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sm8081aac.step 85 KB You want the bare part, or you mark your own boards.
sm8081aac-etched.step 2.0 MB You want the part with SM8081AAC already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 472 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: Silergy Corp datasheet (11 pp, sha256 483036b5aca04853, retrieved 2026-08-17, tier: manufacturer)
  • 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