component

LM2675M-3.3

Public Made by Adom

by adom

UMW DC-DC Converters, SOP-8. 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 lm2675m-3-3: 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
lm2675m-3-3-etched.fit.json lm2675m-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm2675m-3-3-etched.glb lm2675m-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm2675m-3-3-etched.step lm2675m-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lm2675m-3-3.glb Publish 0.1.0 · Ray
lm2675m-3-3.kicad_mod Publish 0.1.0 · Ray
lm2675m-3-3.kicad_sym Publish 0.1.0 · Ray
lm2675m-3-3.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
lm2675m-3-3.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 lm2675m-3-3: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md lm2675m-3-3: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

LM2675M-3.3

UMW · DC-DC Converters · SOP-8

LM2675M-3.3 from UMW, in a SOP-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 CB passive Bootstrap capacitor terminal. External capacitor (typ. 10 nF, 50 V) connects between CB and VSW to provide bootstrapped gate drive for the internal high-side power switch.
2 NC unconnected No connection (empty port). Leave floating or tie to GND per board convention.
3 NC unconnected No connection (empty port). Leave floating or tie to GND per board convention.
4 FB input Feedback control input to the internal error amplifier. For the fixed 3.3 V version this pin is tied directly to VOUT; the internal reference regulates FB to the nominal output. Abs-max VFB = -0.3 V to VIN.
5 ON/OFF input TTL-compatible enable input with hysteresis. Logic HIGH (VON >= 1.5 V) enables the regulator; logic LOW (VOFF <= 0.8 V) puts the part in shutdown (ISTB ~ 100 uA). Abs-max -0.3 V to 6 V.
6 GND power_in Power supply ground / device reference. Connect to system ground plane.
7 VIN power_in Positive supply input to the internal power switch and control circuitry. Operating range 7 V to 40 V; absolute-max 45 V. Bypass locally with an input capacitor (typ. 100 uF).
8 VSW power_out Power switch output (SW node). Connects to the external inductor and catch (Schottky) diode of the buck power stage. Abs-max -1 V to VIN; peak switch current limit ~2 A.

Key specifications

Parameter Value
Manufacturer UMW
Package SOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • LM2675M-3.3

CAD (KiCad official)

  • Symbol: LM2675M-3.3
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: lm2675m-3-3-etched.step / lm2675m-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2675m-3-3.step / lm2675m-3-3.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lm2675m-3-3.step 122 KB You want the bare part, or you mark your own boards.
lm2675m-3-3-etched.step 2.1 MB You want the part with LM2675M-3.3 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 511 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: UMW datasheet (14 pp, sha256 596039c1658a306f, 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