component

SPX1117M3-L-3-3

Public Made by Adom

by adom

MaxLinear Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs spx1117m3-l-3-3: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plai… · 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 spx1117m3-l-3-3: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plai… · Ray
README.md spx1117m3-l-3-3: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
spx1117m3-l-3-3-etched.fit.json spx1117m3-l-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
spx1117m3-l-3-3-etched.glb spx1117m3-l-3-3: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plai… · Ray
spx1117m3-l-3-3-etched.step spx1117m3-l-3-3: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plai… · Ray
spx1117m3-l-3-3.glb Publish 0.1.0 · Ray
spx1117m3-l-3-3.kicad_mod Publish 0.1.0 · Ray
spx1117m3-l-3-3.kicad_sym Publish 0.1.0 · Ray
spx1117m3-l-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
spx1117m3-l-3-3.step Publish 0.1.0 · Ray

SPX1117M3-L-3-3

MaxLinear · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3

SPX1117M3-L-3-3 from MaxLinear, in a SOT-223-3. 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 ADJ/GND power_in Ground pin for the fixed-voltage option (this SPX1117M3-L-3-3 is the 3.3V fixed version, so pin 1 is tied to system ground). On the adjustable variant this same pin functions as the ADJ feedback node with a typical adjust-pin current of approximately 50uA.
2 VOUT power_out Regulated 3.3V output pin, 3.267V to 3.333V typical (25 degC) and 3.234V to 3.366V over full operating range. Guaranteed 800mA continuous / 1A peak. Requires a >=2.2uF ceramic (or 10uF aluminum) output capacitor for stability; ESR should be <=0.5 ohm. The exposed TAB of the SOT-223 package is internally connected to VOUT.
3 VIN power_in Unregulated input supply, absolute maximum 20V. For the 3.3V fixed version, minimum input is VOUT+1.5V (approx 4.8V) for full spec; typical operating range is 4.8V to 10V. Bypass with a 4.7uF input capacitor close to the pin.

Key specifications

Parameter Value
Manufacturer MaxLinear
Package SOT-223-3
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • SPX1117M3-L-3-3
  • SPX1117M3-L-3-3/TR
  • SPX1117T-L-3-3
  • SPX1117T-L-3-3/TR

CAD (KiCad official)

  • Symbol: SPX1117M3-L-3-3
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3 (KiCad packages3D, STEP)
  • 3D model files: spx1117m3-l-3-3-etched.step / spx1117m3-l-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); spx1117m3-l-3-3.step / spx1117m3-l-3-3.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
spx1117m3-l-3-3.step 64 KB You want the bare part, or you mark your own boards.
spx1117m3-l-3-3-etched.step 2.1 MB You want the part with SPX1117M3-L-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: 541 faces against 75 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: MaxLinear datasheet (11 pp, sha256 d1c809a37deea7ec, 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