component

XC9145B33CMR-G

Public Made by Adom

by adom

Torex Semicon DC-DC Converters, SOT-25. 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 xc9145b33cmr-g: 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 xc9145b33cmr-g: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md xc9145b33cmr-g: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
xc9145b33cmr-g-etched.fit.json xc9145b33cmr-g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
xc9145b33cmr-g-etched.glb xc9145b33cmr-g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
xc9145b33cmr-g-etched.step xc9145b33cmr-g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
xc9145b33cmr-g.glb Publish 0.1.0 · Ray
xc9145b33cmr-g.kicad_mod Publish 0.1.0 · Ray
xc9145b33cmr-g.kicad_sym Publish 0.1.0 · Ray
xc9145b33cmr-g.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
xc9145b33cmr-g.step Publish 0.1.0 · Ray

XC9145B33CMR-G

Torex Semicon · DC-DC Converters · SOT-25

XC9145B33CMR-G from Torex Semicon, in a SOT-25. 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 CE input Chip Enable. H = Active, L = Stand-by. Do not leave open (undefined state). VCEH ≥ 1.50V (max 6.0V); VCEL ≤ 0.30V. Input current ≤ 0.1µA.
2 GND power_in Ground reference for the IC. All voltages in the datasheet are referenced to this pin.
3 BAT power_in Power Supply Input (battery pin). Operating input voltage VBAT = 0.65V to 5.5V, operation start voltage 1.6V, operation hold voltage 0.65V. Absolute max 6.6V.
4 VOUT power_out Regulated boost output (fixed 3.3V for this option). Also serves as the output-voltage sense/feedback node for the internal divider, load-disconnect controller, and VDD MAX selector. Absolute max 6.6V.
5 Lx output Switching node connecting to the external boost inductor (typ. 4.7µH). Internal 200mΩ N-ch driver FET low-side and 270mΩ P-ch synchronous rectifier high-side. Max continuous ILx = 2.0A; absolute max voltage 6.6V.

Key specifications

Parameter Value
Manufacturer Torex Semicon
Package SOT-25
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • XC9145B33CMR-G
  • XC9145B33CMR-GER-G
  • XC9145B33CMR-G0R-G

CAD (KiCad official)

  • Symbol: XC9145B33CMR-G
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-25 (KiCad packages3D, STEP)
  • 3D model files: xc9145b33cmr-g-etched.step / xc9145b33cmr-g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xc9145b33cmr-g.step / xc9145b33cmr-g.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
xc9145b33cmr-g.step 85 KB You want the bare part, or you mark your own boards.
xc9145b33cmr-g-etched.step 2.7 MB You want the part with XC9145B33CMR-G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 648 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: Torex Semicon datasheet (29 pp, sha256 4583a91f3e201771, 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